Best Generic Diesel Additives in 2026
Daisy
Last Updated: Jul 18, 2026
Daisy
Last Updated: Jul 18, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
A powerful and safe way to eliminate damaging sludge and gum from aged or contaminated fuel tanks
Unclog fuel lines while rejuvenating old, stale gasoline and diesel fuel
Does not contain any chemical strippers, alcohol or detergents and is safe for use in all engines
A cost effective alternative to expensive fuel polishing and tank cleaning
Concentrated: 1 ounce for every 4 gallons of gas or diesel fuel - 64 ounce cleans 256 gallon tank
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
A powerful and safe way to eliminate damaging sludge and gum from aged or contaminated fuel tanks
Unclog fuel lines while rejuvenating old, stale gasoline and diesel fuel
Does not contain any chemical strippers, alcohol or detergents and is safe for use in all engines
A cost effective alternative to expensive fuel polishing and tank cleaning
Concentrated: 1 ounce for every 4 gallons of gas or diesel fuel - 128 ounce cleans 512 gallon tank
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Boating Accessories | 9.39 | ❌ | ❌ | ❌ |
Prevents corrosion of fuel tank and fuel delivery system
Stops formation of gum and sludge, insures quick starts after storage
One product does it all - stabilizes and fogs in one step
Stabilizes diesel for two years
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BrandNewEngines, Inc | 9.86 | ❌ | ❌ | ❌ |
Quality aftermarket replacement and original parts and accessories
Parts that match or exceed OEM standards
Reliable and durable with OEM or higher quality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
Product 1: ENZYME FUEL TREATMENT – Star Tron Enzyme Fuel Treatment Concentrate improves the combustibility of all fuel - meaning more power and better fuel economy. It keeps working to clean your fuel delivery system, so your engines start easily and run strong.
Product 1: STABILIZES FUEL FOR UP TO 2 YEARS – This fuel additive is ideal for everyday use and seasonal storage. It can stabilize fuel for up to 2 years and can help rejuvenate old, sub-spec fuel.
Product 1: MAX PERFORMANCE – This gasoline stabilizer helps improve MPG, eliminate black soot and exhaust stains, reduce emissions, remove carbon build-up, and eliminate and prevent ethanol fuel problems for maximum performance.
Product 1: VERSATILE – This revolutionary fuel stabilizer utilizes enzyme technology to enhance the performance of boats, automobiles, trucks, RVs, tractors, farm equipment, generators, lawnmowers, lawn equipment, oil burning furnaces and all other small engines.
Product 2: Makes engines start easily and run smoothly; improves economy and reduces emissions and carbon build-up from burners, injectors and exhaust components
Product 2: For everyday use and seasonal storage; stabilizes fuel for up to 2 years and can help rejuvenate old, sub-spec fuel
Product 2: Disperses water throughout fuel as submicron-sized droplets that are safely eliminated while the engine operates
Product 2: Cleans valves and injectors of carbon deposits, gums and varnish for maximum performance, increased fuel efficiency and reduced emissions
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| HARVARD MARINE | 9.63 | ❌ | ❌ | ❌ |
Star Tron disperses bacteria, allowing the fuel filtration system to function efficiently. Reduces all emissions, including carcinogenic particulate smoke. Prevents fuel oxidation and stabilizes diesel chemistry for at least two years. Lowers fuel system maintenance. Eliminates carbon build-up on injectors and exhaust components. Increases fuel economy, especially in older engines.
Eliminates water in diesel fuel by dispersing it to sub-micron size that can be safely burned off during combustion. Because it treats water in fuel, Star Tron aids in fuel gelling issues: with the moisture removed, it cannot be converted to ice crystals at low temperatures that in turn can lead to fuel gelling. For severe low temperature applications, we recommend a pour-point depressant.
1oz to 32gal of fuel
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Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Star Brite | 6 |
We've carried out a comprehensive analysis of 660 reviews on diesel additives, using our selection criteria to identify the best options in the oils & fluids. Our findings reveal that most customers typically select diesel additives priced around $54.06, with top brands including stanadyne, liqui moly, hot shots, hot shot's secret, xado, motorcraft, vp racing fuels, generic and red line and biobor
Our team of expert editors reviewed these high-quality items and handpicked the top 6 diesel additives for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the oils & fluids category. These include diamond diesel & turbocharger service, amazon.com, doxa-worldwide, xado tech, llc, southwest diesel & electrical, g.p.s., usautopartscar, spreetail and empathic solutions and r/a hoerr incorporated .
We are dedicated to assisting our users in finding the right additives Products based on their needs, saving them considerable time when choosing which diesel additives to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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