Best Diesel Fuel Additive to Save More at the Pump
Green Fuel Tabs are the best diesel fuel additive trusted by drivers across the United States, a powerful fuel injector cleaner and fuel treatment for diesel engines that improves MPG by 10–20%, helps reduce vehicle emissions by up to 80%, and keeps your engine running cleaner from the very first tank. EPA registered. Science-backed. Just drop it in and drive.
Featured Products Fuel Saver Global
Featured Products
Diesel fuel additive solutions for every vehicle from everyday cars to commercial truck fleets. Choose your pack and start saving from the very first tank.
Improve Mileage
Maximize fuel efficiency and get 10–20% more miles from every gallon of diesel.
Protect Engine
Advanced catalyst formula protects injectors, valves, and pistons against carbon deposits and wear.
Reduce Vehicle Emissions
Cut CO₂, NOx, SOₓ, and PM₁₀ harmful emissions by up to 80% for cleaner air every mile you drive.
Clean Fuel System
Keeps fuel injectors and your entire fuel delivery system running clean and at peak efficiency.
How Green Fuel Tabs Work as a Fuel Treatment for Diesel Engines
Most diesel engines burn fuel inefficiently without drivers ever knowing it.
The Science Behind the Best Diesel Fuel Additive
Drop It In
Drop one Green Fuel Tab into your tank before filling up.
Catalyst Activates
Our organo-metallic combustion catalyst lowers the ignition threshold.
Save Money & Drive Cleaner
More complete combustion means better MPG and fewer emissions.
Green Fuel Tabs use an organo-metallic combustion catalyst a proven class of chemistry used in industrial fuel treatment for decades. When added to your fuel, the active compounds attach to fuel molecules and lower the energy required for complete ignition.
The result is more complete combustion on every engine cycle. More energy is extracted from the same amount of fuel. Fewer unburned molecules exit as emissions. Carbon deposits stop forming and existing deposits begin to break down.
This is not a fuel system cleaner that wipes away deposits after the fact. Green Fuel Tabs prevent inefficient combustion from happening in the first place.
What Makes Fuel Saver Global Different
- EPA Registered (Reg. #23772000) government reviewed and independently approved
- 10–20% MPG improvement documented and consistent across vehicle types
- 40–80% reduction in vehicle emissions CO2, NOx, SOx, PM10, and hydrocarbons
- Works in both diesel and gasoline engines one formula, broad compatibility
- Available in tablet and liquid formats convenient for personal or bulk fleet use
- No engine modifications required drop in and drive, nothing else changes
- US-based expert support real people, real answers: (818) 937-3261
Frequently Asked Questions About Diesel Fuel Additives
Everything you need to know about Green Fuel Tabs, Green Fuel Oil, and fuel treatment for diesel engines answered simply and clearly.
What is a diesel fuel additive?
A diesel fuel additive is a product added directly to your fuel tank to improve how your engine burns fuel. Unlike basic fuel injector cleaner products that use detergents, Green Fuel Tabs work as combustion catalysts they change how fuel burns at the molecular level, allowing more complete combustion, better mileage, and far fewer harmful emissions with every cycle.
What is the best diesel fuel additive for trucks?
Truck Fuel Tabs are purpose-built as a diesel additive for trucks, RVs, and heavy-duty diesel engines. Each tablet treats 50 gallons, and the 6-tab fleet pack covers 300 gallons (1,140L). For commercial operations that need bulk coverage, Green Fuel Oil is available as a 1-gallon concentrate treating 5,000 gallons, or a 55-gallon drum for large-scale fleet and trucking operations.
Can Green Fuel Tabs help reduce vehicle emissions?
Yes. Green Fuel Tabs are specifically designed to reduce vehicle emissions including CO2, carbon monoxide, sulfur oxides, nitrogen oxides, unburned hydrocarbons, and fine particulate matter (PM10). Because more fuel burns completely on every combustion cycle, far fewer harmful gases leave the exhaust. Independent testing shows emissions reductions of 40 to 80 percent making Green Fuel Tabs one of the most effective ways to lower your vehicle's environmental impact without any engine modification.
How long does it take to see results from fuel treatment for diesel engines?
Improved throttle response and smoother performance are typically noticeable within the first few tanks. Full benefits including maximum mileage improvement and complete removal of pre-existing carbon deposits are generally realized after approximately 4,000 miles or 600 hours of engine operation. The exact timeline depends on engine age and the extent of existing carbon buildup.
Are Fuel Saver Global products safe for my engine?
Yes. All Fuel Saver Global diesel fuel additives are EPA registered and built on proven combustion chemistry. They do not modify engine management systems, do not boost octane artificially, and are fully compatible with both diesel and gasoline engines. They do not void standard manufacturer warranties when used as directed.
Which product should I choose — Green Fuel Tabs, Truck Fuel Tabs, or Green Fuel Oil?
Choose Green Fuel Tabs for everyday cars, pickup trucks, and light-duty vehicles. Choose Truck Fuel Tabs if you operate heavy-duty diesel trucks, RVs, or fleet vehicles that run on large fuel tanks. Choose Green Fuel Oil if you manage a commercial fleet, agricultural operation, or industrial equipment requiring high-volume bulk fuel treatment for diesel engines. Not sure? Call us at (818) 937-3261 for a free recommendation.
Blog posts
Contact Form
Have a question about our diesel fuel additive products? Need a bulk quote for Green Fuel Oil or Truck Fuel Tabs? Fill in the form and our team will get back to you within one business day.