How we researched this guide
We compared 8 fuel-treatment products: the two real Dipetane SKUs (1L and 5L) from dipetane.com, plus 6 diesel treatments sold on amazon.com. We checked 8 spec sheets and maker pages and reviewed 6 owner-report sources, including UK owner forums and a dated 2006 OOIDA fleet-test report.
The headline finding: Dipetane has no verified amazon.com listing — the maker’s own buy page links only to amazon.co.uk. So this review pairs Dipetane’s maker documentation and EU owner reports with verified US-market alternatives: Power Service Diesel Kleen, Opti-Lube Summer+, and Stanadyne Performance Formula. We tested nothing; maker claims are reported as claims, owner reports are paraphrased with links.
The 30-second answer
Dipetane is UK-only. Its 1L and 5L fuel lubricants are real, ASIN-verified products — but only on amazon.co.uk, with no amazon.com listing per the maker’s own buy page. This review covers Dipetane’s documented claims and owner reports honestly, then lines up the buyable US alternatives: Power Service Diesel Kleen +Cetane Boost 80 oz 6-pack (strongest-verified US diesel pick) and 12 oz 9-pack (trial size), Opti-Lube Summer+ (lubricity and water separation), and Stanadyne Performance Formula (documented cold-weather claims). More in our fuel additives archive; diesel towers should also see best winch for diesel truck.
Focus review
Dipetane Fuel Lubricant 1L
The review’s subject: the maker’s 1:200 “100% hydrocarbon fuel treatment” for petrol and diesel. UK-only — not on amazon.com; Dipetane’s buy page links only to amazon.co.uk.
US-market alternative: Dipetane is not sold on amazon.com. The closest verified US diesel buy here is Power Service Diesel Kleen +Cetane Boost (80 oz).
Bulk (UK)
Dipetane Fuel Lubricant 5L
Same single-formulation product in 5L (treats 1,000L at 1:200). Same UK-only gap — fine for UK buyers, a non-starter for US one-click shopping.
US-market alternative: Dipetane is not sold on amazon.com. The closest verified US diesel buy here is Power Service Diesel Kleen +Cetane Boost (80 oz).
US diesel pick
Power Service Diesel Kleen +Cetane Boost (80 oz, 6-pack)
Strongest-verified US diesel treatment here: cetane up to 6 numbers, injector cleaner, ULSD lubricity — year-round but explicitly not an antigel.
Trial size
Power Service Diesel Kleen +Cetane Boost (12 oz, 9-pack)
Same Diesel Kleen formula in small bottles — try it across a few tanks before committing to bulk. Diesel only.
Lubricity pick
Opti-Lube Summer+ (1 gallon)
Diesel-only summer formula published as a demulsifier: separates water, boosts ULSD lubricity; one gallon treats 2,560 gallons.
Cold-weather pick
Stanadyne Performance Formula (16 oz, case of 12)
The only pick with documented cold-flow claims (pour point down up to 40°F per retailer specs) plus cetane up to 5 points. Real US shelf product.
| Product | Fuel | Treats | Cold weather | Check Price |
|---|---|---|---|---|
| Dipetane 1L | Petrol + diesel | 200 L at 1:200 | Not stated | UK only |
| Dipetane 5L | Petrol + diesel | 1,000 L at 1:200 | Not stated | UK only |
| Diesel Kleen 80 oz | Diesel only | 6-pack, 80 oz each | Not an antigel | Check Price |
| Diesel Kleen 12 oz | Diesel only | 9-pack, 12 oz each | Not an antigel | Check Price |
| Opti-Lube Summer+ | Diesel only | 2,560 gal per gal | Summer formula | Check Price |
| Stanadyne Formula | Diesel only | Case of 12, 16 oz | Cold-flow claims | Check Price |
Fuel treatment finder: which one fits your engine?
Answer two questions and get a recommendation from this review. Every result names a product from this article — no dead ends.
1. What fuel does your engine use?
2. What matters most to you?
How to choose a fuel treatment for your engine
Match the fuel type first
Dipetane is the only product here the maker rates for both petrol and diesel (plus kerosene, heating oil, and biodiesel) — every verified US alternative is diesel-only. A diesel-only treatment in a petrol tank causes real damage, so confirm compatibility on the maker’s page first. Our engine maintenance section keeps fuel-system basics alongside the winch guides.
Decide which problem you are solving
Treatments cluster around injector cleaning, cetane changes, lubricity, water separation, and cold flow. Dipetane’s maker claims more complete combustion with less soot, tying to injector cleanliness and DPF-regeneration assistance. For sharper diesel response, a cetane-plus-cleaner formula like Diesel Kleen lines up directly; for a diesel truck doing short trips, DPF and EGR health matters more than peak cetane.
Cold weather changes the answer
Waxing and gelling are fuel-chemistry problems, not injector problems. Power Service is explicit that Diesel Kleen is year-round but not an antigel — never assume a treatment label means winter protection. Stanadyne is the only pick with documented cold-flow numbers. Winter also punishes batteries: read best winch battery and do winches drain battery before the first freeze.
Lubricity and water matter in ULSD
Ultra-low-sulfur diesel has less natural lubricity than older diesels were designed around, and water kills injectors quietly. Opti-Lube Summer+ is published as a demulsifier that separates water and increases lubricity — the job many high-mileage diesel owners are actually buying. Tacoma and 4Runner owners with auxiliary fuel setups should pay extra attention here.
Read “up to” claims as marketing
Dipetane’s maker claims up to 10% better consumption and up to 25% lower emissions — reported as claims, not facts. The only independent third-party test we found is a dated 2006 OOIDA fleet report (three engines, 3% economy gain, 32% blowby reduction): evidence of a kind, not current proof. Judge a treatment by your own logged tanks over a month, not one fill-up.
Check availability in your country
Dipetane’s UK-only availability is this review’s practical headline: no amazon.com listing exists, verified across searches and the maker’s own buy page. UK and Ireland buyers can use the maker’s links; US buyers should budget among the verified alternatives. See best 4×4 winch brands and best winch for Ford F-150 for more US-stocked gear.
Fuel treatments by budget
| Tier | What you get | Example pick |
|---|---|---|
| Try-it size | Small bottles to test a formula across a few tanks | Diesel Kleen 12 oz, 9-pack |
| Regular use | A size that covers a season of fill-ups | Dipetane 1L (UK) or Diesel Kleen 80 oz, 6-pack |
| Bulk or fleet | Large volume for high-mileage or multi-vehicle use | Dipetane 5L (UK) or Opti-Lube gallon |
Types of fuel treatments
| Type | What it does | Best for | Watch out |
|---|---|---|---|
| Hydrocarbon treatment (Dipetane-style) | Maker claims more complete combustion, less soot | Petrol and diesel drivers wanting one product | Claims are maker-reported; no independent lab data found |
| Cetane booster + injector cleaner | Raises cetane, cleans injector deposits | Diesel response and economy | Diesel only; some are not antigels |
| Lubricity + water separator | Protects fuel system, separates water | ULSD-era diesels, stored fuel | Diesel only; summer formulas are not winter formulas |
| All-season diesel formula | Cetane plus documented cold-flow claims | Cold-climate diesels | Check the pour-point numbers, not the name |
Detailed reviews: Dipetane and the US alternatives
Six products, two countries of availability: Dipetane’s two SKUs from maker documentation and owner reports, then four verified US-market alternatives — each with the same honest structure.
Our focus review: Dipetane Fuel Lubricant 1L
Focus review
Why the Dipetane Fuel Lubricant 1L is our pick
The keyword’s product: Dipetane’s flagship 1L — and the only petrol-rated product here. Covered from maker documentation and EU owner reports, availability gap stated plainly.
Dipetane Fuel Lubricant 1L key specs
- Size: 1 litre (maker SKU DP001)
- Mix ratio: 1:200 — 1L treats 200L (maker says add a little extra the first time)
- Fuel types: petrol, diesel #1 and #2, kerosene, heating oil, biodiesel — one formulation
- Composition: maker’s “100% hydrocarbon fuel treatment,” explicitly not an additive
- No detergents, cetane enhancers, octane boosters, or heavy metals (maker)
- Flashpoint: 193°C (closed cup); density 0.8623 kg/L at 15°C
- Viscosity: 18.27 cSt at 40°C; ash 0.02% w/w; copper corrosion class 1
- Maker claims: up to 10% better consumption, up to 25% lower emissions, injector cleaning, DPF-regeneration assistance
- Availability: amazon.co.uk only (ASIN B00BXK1JBA) — no verified amazon.com listing
Dipetane Fuel Lubricant 1L: fits and best for
Best for UK and Ireland drivers wanting one bottle for petrol and diesel cars — the single-formulation positioning is the genuine differentiator. Diesel drivers with DPF/EGR concerns get the maker’s regeneration-assistance claims, unverified. Poor fit for US buyers: no amazon.com listing.
Dipetane Fuel Lubricant 1L: pros and watch-outs
Pros
- One product for petrol, diesel, kerosene, heating oil, biodiesel
- Published physical properties — rare transparency for the category
- Simple self-mixing 1:200 dose
- Maker claims DPF, EGR, and catalyst cleanliness assistance
- No detergents, cetane enhancers, octane boosters, or heavy metals
Watch-outs
- UK-only: no amazon.com listing
- “Up to 10% / 25%” are maker claims; no independent lab data found
- Mixed owner sentiment; several forum threads lean skeptical
- Only third-party test found is a dated 2006 fleet report
Dipetane Fuel Lubricant 1L: what owners report
On mercedesclub.org.uk, “syncropaddy” reported his 2000 VW Polo’s emissions reading improved roughly 50% after ~2,000 miles on Dipetane with long runs.
On forums.ybw.com, a 163k-mile Honda CR-V owner reported always passing MOT emissions, his garage finding the exhaust “completely shiny clean.”
On pistonheads.com, one eBay buyer reported higher exhaust temps and slightly better mpg while the thread majority stayed skeptical. Coverage: EU-based and thin for US buyers, matching the UK-only listing.
Dipetane Fuel Lubricant 1L: who should not buy
US buyers should not chase this — the verified domestic alternative is Power Service Diesel Kleen +Cetane Boost (80 oz). UK petrol drivers have no conflict: the only petrol-rated product here.
Dipetane Fuel Lubricant 1L: pair it with
Pair it with a maintenance routine, not another bottle. No verified accessory ASIN exists for this product.
US-market alternative: Dipetane is not sold on amazon.com. The closest verified US diesel buy here is Power Service Diesel Kleen +Cetane Boost (80 oz).
Tip: dose before fueling — the self-mixing claim assumes fill-up turbulence. See our info guides for routines.
Bulk buy (UK): Dipetane Fuel Lubricant 5L
Bulk (UK)
Why the Dipetane Fuel Lubricant 5L is our pick
The same single formulation in bulk (maker SKU DP005) — for high-mileage drivers and two-car households. At 1:200, 5L treats 1,000L. Claims, chemistry, and the availability gap match the 1L; only the arithmetic changes.
Dipetane Fuel Lubricant 5L key specs
- Size: 5 litres (maker SKU DP005)
- Mix ratio: 1:200 — 5L treats 1,000L
- Formulation: identical to the 1L; no separate diesel/petrol product
- Fuel types: petrol, diesel #1 and #2, kerosene, heating oil, biodiesel
- Composition: maker’s “100% hydrocarbon fuel treatment”
- No detergents, cetane enhancers, octane boosters, or heavy metals (maker)
- Flashpoint: 193°C (closed cup); density 0.8623 kg/L at 15°C
- Viscosity: 18.27 cSt at 40°C; ash 0.02% w/w; copper corrosion class 1
- Maker claims: up to 10% better consumption, up to 25% lower emissions, injector cleaning, DPF-regeneration assistance
- Also claimed: non-toxic, non-hazardous; complies with relevant British Standards
- Availability: amazon.co.uk only (ASIN B01N5TFSY0) — no verified amazon.com listing
Dipetane Fuel Lubricant 5L: fits and best for
Best for UK-based high-mileage drivers who treat every tank and want fewer reorders — the only bulk option here covering petrol too. US buyers should skip it. Note: the old fleet-test claims (Coca-Cola, Irish Army) were removed from the maker’s site; we do not repeat them.
Dipetane Fuel Lubricant 5L: pros and watch-outs
Pros
- Documented formulation identical to the 1L
- 5L at 1:200 treats 1,000L — suits high-mileage drivers
- Single product for petrol and diesel households
- Published physical properties, unusual for the category
Watch-outs
- UK-only — importing 5L to the US is impractical
- Maker “up to” claims unverified; no independent lab data
- Bulk size magnifies the cost of being wrong
- Mixed forum sentiment, including briskoda skepticism
Dipetane Fuel Lubricant 5L: what owners report
On briskoda.net, one owner gave a “modest thumbs up” for an old TDI — reduced smoke, help passing Ireland’s NCT test — while others stayed skeptical.
The dated third-party evidence is a 2006 Land Line (OOIDA) fleet-test report: three 2004 Cummins ISX engines averaged 3% better economy, 13 hp more, 32% less blowby. Genuine testing — and twenty years old.
Dipetane Fuel Lubricant 5L: who should not buy
US buyers should not import a 5L jug of a UK-only treatment — freight defeats the purpose. The verified domestic bulk buy is Power Service Diesel Kleen +Cetane Boost (80 oz, 6-pack).
Dipetane Fuel Lubricant 5L: pair it with
Pair it with measured dosing — bulk only saves money if you dose consistently. No verified accessory ASIN exists.
US-market alternative: Dipetane is not sold on amazon.com. The closest verified US diesel buy here is Power Service Diesel Kleen +Cetane Boost (80 oz).
Tip: confirm the jug’s seal on arrival; store upright and cool. See essential winching accessories for gear-upkeep thinking.
Best US diesel alternative: Power Service Diesel Kleen +Cetane Boost (80 oz, 6-pack)
US diesel pick
Why the Power Service Diesel Kleen +Cetane Boost is our pick
The strongest-verified product here: live amazon.com listing (Power Service, model 1080-06-6PK, #29 in Diesel Additives at crawl time) plus a detailed maker page. The closest US analogue to Dipetane’s injector-cleaning pitch — total injector cleaner, cetane up to 6 numbers, ULSD lubricity — year-round but explicitly not an antigel.
Power Service Diesel Kleen +Cetane Boost key specs
- Size: 80 oz bottles, pack of 6 (model 1080-06-6PK)
- ASIN: B008HZGXAQ — verified on a live amazon.com listing
- Cetane: up to 6 numbers (maker)
- Cleaning: total injector cleaner; prevents sticking in HPCR and older systems
- Economy: maker claims restores lost power and economy “up to 7%”
- Lubricity: Slickdiesel lubricator for ULSD
- Compatibility: ULSD and biodiesel blends; no metal or metal ions
- Season: year-round — explicitly NOT an antigel (maker)
- Maker sizes: 12 oz through 260-gallon totes
- Fuel type: diesel only
- Listing: Diesel Additives, first available July 6, 2012
Power Service Diesel Kleen +Cetane Boost: fits and best for
Best for US diesel owners wanting the Dipetane-adjacent job — cleaner injectors, better combustion — from a domestic buy. The 6-pack suits every-tank treaters: commuters, towers, daily diesels. Compare notes in the TDIClub additive thread; towers see best winch for diesel truck.
Power Service Diesel Kleen +Cetane Boost: pros and watch-outs
Pros
- Strongest verification: live listing plus full maker spec page
- Cetane up to +6 with injector cleaning in one bottle
- Lubricity additive for the ULSD wear concern
- No metals or metal ions; biodiesel-blend compatible
- Honest limits: year-round, explicitly not an antigel
Watch-outs
- Diesel only
- “Up to 7%” economy claim is not a guarantee
- Not an antigel — winter needs a different product
- 6-pack is a commitment untried
Power Service Diesel Kleen +Cetane Boost: what owners report
The live listing carries verified-purchase reviews, including a “Big Performance Gains with Diesel Kleen plus Cetane Boost!” review — enthusiastic, and a single data point like any review.
On forums.tdiclub.com, TDI owners treat Diesel Kleen as a standard reference product in additive debates. Coverage: strong — listing reviews plus independent forum discussion.
Power Service Diesel Kleen +Cetane Boost: who should not buy
Petrol drivers: diesel-only, full stop. Deep-winter diesel owners should not rely on it alone — Stanadyne Performance Formula is the cold-weather pick here.
Power Service Diesel Kleen +Cetane Boost: pair it with
Pair it with a winter plan: this bottle handles injectors and cetane, not gelling. No verified accessory ASIN applies.
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Tip: set the winter anti-gel strategy before the first cold snap. See how to wire a winch to a truck battery for cold-weather electrical checks.
Best trial size: Power Service Diesel Kleen +Cetane Boost (12 oz, 9-pack)
Trial size
Why the Power Service Diesel Kleen +Cetane Boost 12 oz is our pick
Same Diesel Kleen formula in small bottles — part number 3012-09, ASIN B09NB49BH4 on a live amazon.com listing. The low-commitment entry: try it across a few tanks, log results, then decide on the bulk 6-pack.
Power Service Diesel Kleen +Cetane Boost 12 oz key specs
- Size: 12 oz bottles, pack of 9 (part number 3012-09)
- ASIN: B09NB49BH4 — verified on a live amazon.com listing
- Cetane: up to 6 numbers (same maker specs as the 80 oz)
- Cleaning: total injector cleaner for HPCR and older systems
- Economy: maker claims restores lost power and economy “up to 7%”
- Lubricity: Slickdiesel lubricator for ULSD
- Compatibility: ULSD and biodiesel blends; no metal or metal ions
- Season: year-round — explicitly NOT an antigel (maker)
- Fuel type: diesel only
- Listing: first available December 9, 2021
Power Service Diesel Kleen +Cetane Boost 12 oz: fits and best for
Best for first-time users and anyone A/B testing before stocking up. Nine small bottles also suit multi-vehicle households. Spec source: powerservice.com; cross-check the TDIClub thread and our best truck winches roundup.
Power Service Diesel Kleen +Cetane Boost 12 oz: pros and watch-outs
Pros
- Same verified formula — no spec compromise
- Low-commitment test before bulk
- Live listing with verifiable part number
- Maker documents every claim on one page
Watch-outs
- Diesel only
- Costs more per treated gallon than bulk
- Not an antigel
- Short trials can fool you; log several tanks
Power Service Diesel Kleen +Cetane Boost 12 oz: what owners report
Reporting mirrors the 80 oz: verified-purchase reviews on the live listing, and the same formula debated as a reference product in the TDIClub additive thread. Coverage: adequate — same formula evidence; no small-pack-specific testing found, as expected for a size variant.
Power Service Diesel Kleen +Cetane Boost 12 oz: who should not buy
Every-tank treaters should skip to the 80 oz 6-pack — the trial size exists for the undecided. Not for petrol drivers.
Power Service Diesel Kleen +Cetane Boost 12 oz: pair it with
Pair it with a fuel log: a trial teaches nothing unwritten. No verified accessory ASIN applies.
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Tip: run three treated tanks minimum before judging. Keep the log with our winch maintenance checklist discipline.
Best for lubricity and water separation: Opti-Lube Summer+ (1 gallon)
Lubricity pick
Why the Opti-Lube Summer+ is our pick
A different job from the cetane chasers: published as a demulsifier that separates water and boosts ULSD lubricity, claiming to double diesel storage life. ASIN B00G6RED22 verified on a live amazon.com listing (128 fl oz, UPC 853001004207, “1 Gallon — Treats 2560 Gallons”). For stored fuel and older diesels, that matters more than a cetane number.
Opti-Lube Summer+ key specs
- Size: 1 gallon (128 fl oz)
- ASIN: B00G6RED22 — verified live listing; UPC 853001004207
- Treatment rate: 1 gallon treats 2,560 gallons (per listing)
- Function: demulsifier — separates water from diesel
- Lubricity: published to increase ULSD lubricity
- Storage: published to double diesel storage life
- Siblings XPD, XL, Winter, Boost on the same listing page
- Season: summer formula — not the winter variant
- Fuel type: diesel only
Opti-Lube Summer+: fits and best for
Best where water and wear are the enemy: stored fuel, farm and equipment diesels, boats, high-mileage trucks with original injectors. The 2,560-gallon rate makes it a long-term shelf item. Honest gap: beyond the listing, we could not independently locate the maker’s own spec numbers — treat claims as listing-published.
Opti-Lube Summer+: pros and watch-outs
Pros
- Demulsifier — separates water instead of emulsifying it through
- Addresses ULSD lubricity, the quiet wear issue in older diesels
- One gallon treats 2,560 gallons
- Doubled storage life suits seasonal equipment
Watch-outs
- Maker specs beyond the listing not independently located
- Summer formula — not for gelling or cold starts
- No cetane claim; not a performance buy
- Diesel only
Opti-Lube Summer+: what owners report
No independent forum reports were gathered this round — evidence is the verified live listing and its verified-purchase reviews. Coverage note: thin on forums; ASIN and listing claims verified, but no TDIClub-style thread dissects this formula. Stated plainly, not padded.
Opti-Lube Summer+: who should not buy
Cold-climate drivers: do not buy a summer formula for winter — Stanadyne Performance Formula has the documented cold-flow claims. Performance seekers: Diesel Kleen.
Opti-Lube Summer+: pair it with
Pair it with a water-separator drain habit — separated water must leave the system per your manual. No verified accessory ASIN applies.
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Tip: treat stored diesel at fill-up and keep the tank full — less air, less condensation. See best wireless winch remote for another convenience upgrade.
Best cold-weather pick: Stanadyne Performance Formula (16 oz, case of 12)
Cold-weather pick
Why the Stanadyne Performance Formula is our pick
The only pick with documented cold-flow claims — pour point down up to 40°F, cold filter plug point down up to 25°F, per retailer-published specs — plus cetane up to 5 points and detergent cleaning. A genuine US shelf product (AutoZone, Tractor Supply). ASIN B000M46TEU is medium-confidence — review-page slug plus retailer corroboration, not a direct page crawl — stated openly.
Stanadyne Performance Formula key specs
- Size: 16 oz bottles, case of 12 (model 38565C)
- ASIN: B000M46TEU — medium confidence (slug + retailer corroboration)
- Cetane: up to 5-point gain (retailer-published specs)
- Economy: avg 4% MPG in independent tests cited by retailer data, up to 9.6%
- Cold flow: pour point down up to 40°F; cold filter plug point down up to 25°F
- Cleaning: detergents; restores horsepower (retailer data)
- Compatibility: ULSD and B20 biodiesel; no alcohol
- Water/corrosion: demulsifiers and corrosion inhibitors
- Retail: AutoZone (SKU 168687, part STAN38565), Tractor Supply
- Spec source: tractorsupply.com
- Fuel type: diesel only
Stanadyne Performance Formula: fits and best for
Best for cold-climate diesel owners — the pour-point and cold-filter numbers are why this card exists. Also suits drivers wanting one bottle for cetane, cleaning, and winter operability. bestreviews.guide corroborates the US listing; winter drivers see best winch for snow plow too.
Stanadyne Performance Formula: pros and watch-outs
Pros
- Only documented cold-flow numbers — the winter differentiator
- Cetane up to +5 plus detergent cleaning in one formula
- No alcohol; demulsifiers and corrosion inhibitors
- Real US retail presence
Watch-outs
- ASIN medium-confidence — not a direct page crawl
- “Up to” numbers are best-case claims
- Diesel only
- Case of 12 is a commitment untried
Stanadyne Performance Formula: what owners report
On forums.tdiclub.com, long-term users discuss its water handling and report a perceptible lubricity difference.
In the TDIClub comparison thread, owners note dosing efficiency — “15oz treats up to 60 gallons… to boost cetane 3-5 points.” Coverage: solid forum evidence; thin spot is ASIN verification, not reputation.
Stanadyne Performance Formula: who should not buy
Warm-climate drivers should not pay for cold-flow chemistry they will never use — consider Diesel Kleen. If ASIN certainty matters, the Diesel Kleen and Opti-Lube ASINs are stronger-verified.
Stanadyne Performance Formula: pair it with
Pair it with a pre-winter battery check — cold cranking punishes weak batteries hardest. No verified accessory ASIN applies.
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Tip: “all-season” is not a number — pour-point and cold-filter figures are. See best snatch block for winching for where ratings beat marketing.
Spec comparison
Scores are editorial judgement on verification strength, documentation quality, and US availability — not test results. Nothing here was dyno, lab, or road tested.
| Spec | Dipetane 1L | Dipetane 5L | Diesel Kleen 80 oz |
|---|---|---|---|
| Fuel types | Petrol + diesel + others | Petrol + diesel + others | Diesel only |
| Mix ratio | 1:200 | 1:200 | Per maker dosing |
| Treats per pack | 200 L | 1,000 L | 6 x 80 oz bottles |
| Cetane claim | None (no enhancers) | None (no enhancers) | Up to +6 numbers |
| Injector cleaning | Claimed by maker | Claimed by maker | Total injector cleaner |
| Lubricity | Claimed by maker | Claimed by maker | Slickdiesel additive |
| Water handling | Not stated | Not stated | Not stated |
| Cold-weather claim | Not stated | Not stated | Not an antigel |
| DPF/regen claim | Assists regen (maker) | Assists regen (maker) | Not stated |
| amazon.com listing | No — UK only | No — UK only | Yes, verified |
| Score | 7.5 | 7.5 | 9.0 |
| Check Price | UK only | UK only | Check Price |
| Spec | Diesel Kleen 12 oz | Opti-Lube Summer+ | Stanadyne Formula |
|---|---|---|---|
| Fuel types | Diesel only | Diesel only | Diesel only |
| Mix ratio | Per maker dosing | 1 gal : 2,560 gal | Per maker dosing |
| Treats per pack | 9 x 12 oz bottles | 2,560 gallons | 12 x 16 oz bottles |
| Cetane claim | Up to +6 numbers | None published | Up to +5 points |
| Injector cleaning | Total injector cleaner | Not stated | Detergent cleaning |
| Lubricity | Slickdiesel additive | Increases ULSD lubricity | Perceptible per owners |
| Water handling | Not stated | Demulsifier | Demulsifiers included |
| Cold-weather claim | Not an antigel | Summer formula | Pour point -40°F claim |
| DPF/regen claim | Not stated | Not stated | Not stated |
| amazon.com listing | Yes, verified | Yes, verified | Medium confidence |
| Score | 8.8 | 8.2 | 7.8 |
| Check Price | Check Price | Check Price | Check Price |
How to use fuel treatments: dosing basics
Add treatment before fueling, not after — fill turbulence is what mixes it, and Dipetane’s maker describes it as self-mixing on that assumption. Respect the label ratio: Dipetane 1:200 for every fuel type (a little extra the first time, per the maker), Opti-Lube’s gallon treats 2,560 gallons, the rest dose per maker instructions. Never extrapolate a ratio from another product, and never double-dose for double results. Switching brands means re-reading the new label — ratios are not interchangeable.
Store bottles sealed, upright, and cool, away from children and pets. Build the habit into a wider routine: our winch maintenance checklist is about winches, but the discipline — inspect on schedule, log what you did — is what makes a fuel log useful. Diesel owners can cross-check the rig in best winch for diesel truck; general upkeep lives in our info guides, and recovery technique in how to use a winch.
Safety essentials
Fuel treatment safety rules
- Add treatment in ventilated areas, never near open flames or hot surfaces.
- Wear gloves; avoid skin and eye contact, wash off contact promptly.
- Store sealed and upright, away from heat, out of reach of children and pets.
- Never siphon fuel or treatment by mouth.
- Keep containers labeled; never reuse chemical bottles for food or drink.
- Dispose of empties under local hazardous-waste rules, not household trash.
Three accessories worth owning (named with guide links — the site’s verified accessory pool is winch recovery gear, so no buttons here): a graduated dosing funnel so 1:200 is actually 1:200 — see essential winching accessories; a spill-absorbent kit for any truck carrying treatment — pair with best winch recovery kit; and a sealed storage tote, the same discipline we recommend for recovery shackles and snatch blocks in work trucks.
Troubleshooting
| Symptom | Likely cause | Fix |
|---|---|---|
| DPF warning after short trips | Soot buildup; short runs never reach regen temp | Longer highway run; Dipetane’s maker claims regen assistance (unverified) — check your manual |
| Rough idle, poor response | Injector deposits | Cleaner-type treatment per maker dosing; Diesel Kleen targets injector sticking |
| Hard starts in cold | Fuel waxing or gelling | Cold-flow-rated formula; Diesel Kleen is not an antigel per its maker |
| Water separator fills fast | Contaminated or stored fuel | Demulsifier-type treatment; drain separator per manual |
| Treatment seems to do nothing | “Up to” claims; too-short test window | Log several tanks; the 2006 fleet test measured 3% over controlled runs |
| White smoke on older TDI | Injector and combustion deposits | One briskoda owner reported reduced smoke with Dipetane; verify with your own emissions test |
Who should NOT buy these
US drivers who only run petrol should skip this lineup except Dipetane — and Dipetane is UK-only. Every verified US pick is diesel-only, so petrol owners have no domestic buy here. Browse our engine maintenance section for other upkeep guides.
Drivers expecting guaranteed MPG gains should reset expectations: “up to 10%” and “up to 7%” are maker claims; the only independent test found is from 2006. Buy for cleaning, lubricity, or cold flow — measurable jobs — and treat economy gains as a bonus. Our info guides cover the basics that actually move the needle.
Anyone whose manual forbids aftermarket additives should follow the manual, especially under warranty — a denied claim costs more than any bottle saves. When in doubt, ask your dealer in writing.
Deep-winter diesel owners buying blind should not assume any treatment handles gelling — Diesel Kleen’s maker says it is not an antigel. Match the cold-flow numbers (Stanadyne’s are documented above) and keep the battery strong with best winch battery.
Final verdict
Focus review — Dipetane Fuel Lubricant 1L: the documented UK-only treatment for petrol and diesel. See our fuel additive guides.
Bulk (UK) — Dipetane Fuel Lubricant 5L: same formula, 1,000L of treatment for high-mileage UK drivers. See our fuel additive guides.
Best US diesel alternative — Power Service Diesel Kleen +Cetane Boost (80 oz, 6-pack): Check its price.
Best trial size — Power Service Diesel Kleen +Cetane Boost (12 oz, 9-pack): Check its price.
Best for lubricity and water separation — Opti-Lube Summer+ (1 gallon): Check its price.
Best cold-weather pick — Stanadyne Performance Formula (16 oz, case of 12): Check its price.
FAQ
Is Dipetane available in the US?
No. Dipetane is an Irish/UK brand with no verified amazon.com listing — searches returned zero US results, and the maker’s buy page links Buy Now only to amazon.co.uk. The known ASINs (B00BXK1JBA for 1L, B01N5TFSY0 for 5L) are UK listings. US readers should choose among the verified domestic alternatives here.
Does Dipetane work in petrol engines?
Per the maker, yes — one formulation for petrol, diesel #1 and #2, kerosene, heating oil, and biodiesel, with no separate diesel/petrol product. That makes it the only petrol-compatible product in this review. Every verified US alternative (Diesel Kleen, Opti-Lube, Stanadyne) is diesel-only.
What is Dipetane’s mixing ratio?
1:200 for all liquid hydrocarbon fuels — 1 litre treats 200 litres, 5 litres treats 1,000 litres. The maker says to add a little extra the first time. Add before fueling so fill turbulence mixes it; the product is described as self-mixing.
Is Dipetane an additive or a fuel treatment?
The maker insists on the distinction: a 100% hydrocarbon liquid fuel treatment, explicitly not an additive — containing no detergents, cetane enhancers, octane boosters, or heavy metals. Whether the distinction matters mechanically is for chemists; for buyers, it is positioned differently from cetane-boosting diesel additives.
Will these treatments help my DPF?
Dipetane’s maker claims regen assistance and cleaner DPF, EGR, and catalysts — a maker claim, not verified fact. No DPF claim is published for the US alternatives here. Short-trip driving is the main DPF enemy; highway runs that reach regen temperature matter more than any bottle.
Can I use Diesel Kleen in winter?
Power Service says Diesel Kleen +Cetane Boost is year-round but explicitly not an antigel — do not rely on it against gelling. For cold starts, Stanadyne Performance Formula has the documented cold-flow claims here (pour point down up to 40°F, cold filter plug point down up to 25°F, per retailer specs).
Do fuel additives actually improve fuel economy?
Maker claims say up to 10% (Dipetane) and up to 7% restoration (Diesel Kleen) — best-case marketing numbers. The only independent test found is a dated 2006 OOIDA fleet report: three Cummins ISX engines averaged 3% better economy, 13 hp more, 32% less blowby. Judge any treatment by your own logged tanks over a month.
How often should I add a fuel treatment?
Follow the maker’s dosing — most are designed for every fill-up. Dipetane doses 1:200 every tank; Opti-Lube’s gallon treats 2,560 gallons total, covering a very long interval. Consistency matters more than brand: an untreated tank breaks the chain a cleaner was building.
Are these safe for modern common-rail and TDI diesels?
Makers say yes within their compatibility statements: Diesel Kleen claims injector cleaning in HPCR systems with no metals or metal ions; Stanadyne is ULSD and B20 compatible with no alcohol. TDIClub owners report long-term use without compatibility failures. If your manual forbids additives under warranty, follow the manual.
Sources & changelog
Manufacturer and retailer sources: dipetane.com — buy page (UK buy links); dipetane.com — DPF and fuel-treatment claims; dipetane.com — commercial-vehicle claims; powerservice.com — Diesel Kleen +Cetane Boost page; tractorsupply.com — Stanadyne specs; bestreviews.guide — Stanadyne product page.
Owner reports: mercedesclub.org.uk — fuel additives thread; forums.ybw.com — diesel additives thread; briskoda.net — Dipetane discussion; pistonheads.com — diesel additives thread; forums.tdiclub.com — Stanadyne usage thread; forums.tdiclub.com — additive comparison thread; ooida.com — 2006 Land Line fleet-test report (PDF).
Changelog — October 23, 2026: guide first published.
By Leo, Founder, WinchInsider
Leo runs WinchInsider’s research desk, comparing products against maker documentation and owner reports instead of marketing copy. This guide was built from Dipetane’s published specs, verified Amazon listings, and owner reports from UK and diesel-owner forums.
Related guides
- Fuel additives archive
- Engine maintenance archive
- Best winch for diesel truck
- Winch maintenance checklist
- Best winch battery
- Info guides
Top pick for US diesel owners: Power Service Diesel Kleen +Cetane Boost (80 oz)