Best Opti Lube Diesel Additives in 2026

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. 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 XL Xtreme Lubricant formula. This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving.

CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XL Xtreme Lubricant formula cleans injectors and helps 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.

Take Care Of Your Engine With An Every-Tank Solution For Better Performance And Health

Boosts Cetane Up To 7 Points For Better Fuel Economy And Maintenance

Adds Lubricity To Protect Fuel System Including Pump And Injectors

Advanced All-season Formula

Cleans and lubricates the entire system

Demulsifies water and prevents corrosion

REDUCED FRICTION & WEAR: In addition to reduced friction from better lubrication, detergents contained in Oil Fortifier will lower surface tension to aid in keeping contaminants in suspension and off of components that could be damaged by them.

LOWERED OIL TEMPERATURES: Friction creates heat. Another result of better lubrication and reduced friction, is heat reduction. Many see lower oil operating temperatures which will help fight oil viscosity breakdown.

IMPROVED FUEL ECONOMY: Proper lubrication reduces energy loss created by friction. Reduced friction and energy loss in oiled components like engines, hydraulic systems and gearboxes or even all three combined, allow your vehicle to run more efficiently.