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5 Best Fuel Additives of 2025

Last Updated - 2025/07/29

1
Best Choice
10% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Opti-Lube
10% Off

Opti-Lube XPD Diesel Fuel Improver: 1 Gallon without Accessories Treats up to 512 Gallons

Opti-Lube

CA$159.99

CA$178.02
(10% Off)

More Details
Main highlights
- MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
- IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving.
- ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all year round. This fuel additive also helps separate water from Diesel fuel as a demulsifier and more than doubles the storage life of standard diesel fuel. Contains enough Anti-Gel to keep fuel flowing down to -10F*.
- ECONOMY: With a treatment rate up to 512 gallons it will cost you just pennies per treated gallon. This diesel fuel treatment isn’t just limited to trucks; use it for your farm and construction equipment too!
- CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
CA$159.99
CA$178.02 (10% Off)
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Archoil

Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles

Archoil

CA$64.95

More Details
Main highlights
- Incorporates Archoil's proven combustion modifier technology and a strong cetane boost to increase power and response
- Formulated to address issues with modern diesel fuels
- Cleans, lubricates and protects your fuel system (including HPCR systems)
- 40.6 oz bottle treats 400 gallons - Use at every fill-up
CA$64.95
3
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Gumout

Gumout 30001 All-in-One Fuel System Cleaner 296ml

Gumout

CA$13.97

CA$14.99
(6% Off)

More Details
Main highlights
- Use every 5,000 km
- Prevents future carbon build-up
- Improved performance and fuel economy in one fill-up
- Conditions fuel to fight ethanol and water corrosion
- Cleans entire fuel system: intake valves & ports; GDI/direct and port injectors; cylinder heads; combustion chamber; and piston tops
CA$13.97
CA$14.99 (6% Off)
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

STA-BIL

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage 236mL (22209)

STA-BIL

CA$11.99

More Details
Main highlights
- PREVENTS CORROSION: Safeguard your engine & fuel system from the detrimental effects of both ethanol & non-ethanol fuels. Maintaining the integrity of fuel system components, it ensures optimal performance & longevity, promoting a healthier fuel system.
- PRESERVES FUEL: This fuel stabilizer ensures keeps gasoline fresh for up to 24 months for storing vehicles that are not in use, boats, outdoor power equipment during winter months, or stocking up on fuel.
- Only STA-BIL’s scientifically designed proprietary formulas of antioxidants, anti-corrosives, & detergents protects all types of engines & is consistently ranked as America’s #1 fuel stabilizer, outperforming competition in independent lab testing.
- EXPIRATION DATE: 2 years from the opening of product, or 5 years from date of production (5-digit code on the back of the bottle; read as YYDDD). YY indicates the year of production. DDD represents the number of the day of that year of production.
- EASY STARTS: Guarantees quick & easy starts for your equipment & vehicles, providing peace of mind when storing them. With its reliable performance, you can confidently store your items, knowing they will start smoothly whenever needed.
- DIRECTIONS: Pour contents directly into the fuel tank before adding gasoline. Use 1 oz of STA-BIL Storage for every 2.5 gallons of gas. After adding the fuel, run the engine for 5 minutes to treat the entire fuel system.
CA$11.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Red Line

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 2 Bottles

Red Line

CA$52.49

More Details
Main highlights
- Use one bottle per tank for most effective treatment of neglected vehicle
- Safe for continual use
- Reduces need for octane by up to two points
- Contains synthetic upper cylinder lubricant
- Cleans to nearly 100 percent efficiency in one treatment
CA$52.49

5 Best Fuel Additives of 2025

Opti-Lube XPD Diesel Fuel Improver: 1 Gallon without Accessories Treats up to 512 Gallons

Archoil AR6500 Diesel Treatment (40.6 oz) - Treats 400 Gallons - Additive for All Diesel Vehicles

Gumout 30001 All-in-One Fuel System Cleaner 296ml

STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage 236mL (22209)

Red Line 60103 Complete SI-1 Fuel System Cleaner, 15 Ounce, 2 Bottles

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