Backed by Real Data
GreenTec Laboratories is a United States-based fuel treatment manufacturer offering a variety of highly effective, right-now solutions that reduce regeneration cycles, retard fuel consumption and greatly reduce emissions across a wide array of fossil fuel applications.
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Why Choose GreenTec Labs?
Proven Fuel Performance
DF5 by GreenTec Labs is an advanced fuel treatment engineered to enhance combustion efficiency—even in today’s most sophisticated gas and diesel engines. Unlike traditional additives, DF5 works at the molecular level to deliver cleaner burns, lower emissions, and longer engine life without altering fuel specs or voiding warranties.
What sets DF5 apart? Independent lab testing and real-world trials have shown fuel savings of up to 20.4%, emission reductions of up to 89.8%, and maintenance cost drops thanks to fewer regens and cleaner injectors. Whether you’re operating school buses, logistics fleets, or heavy-duty equipment, DF5 delivers measurable improvements from day one.
Proven Benefits of DF5 Fuel Treatment
Backed by Third-Party Lab Testing & Real-World Results
Up to 20.4% fuel savings in field tests under harsh conditions
9.4% average fuel efficiency improvement across fleet logistics operations
13.7% MPG gain in job site truck testing
11% increase in fuel economy for school buses
18.2% improvement in MPG for recycling fleet vehicles
40% reduction in Total Hydrocarbons (THC) emissions (Larson Institute)
Up to 89.8% reduction in NOx emissions in controlled case studies
15.4% decrease in CO₂ emissions from fleet testing
Soot load on DPFs reduced by up to 31.82%, minimizing regen cycles
16% improvement in fuel lubricity (ASTM D6079 Test by SPL Labs)
Prevents harmful injector deposits (IDID Test by Southwest Research Institute)
Reduces wear and fouling, extending engine life by up to 30%
Significantly fewer regenerations and reduced DEF usage by up to 50%
DF5 is certified safe for use with Cummins, Detroit Diesel, and Caterpillar engines
Fully compliant with the Magnuson-Moss Warranty Act
Backed by GreenTec’s warranty support and full testing documentation
Eliminates harmful injector buildup and sludge
Improves cold-weather fuel performance
Reduces risk of fuel-related failures including clogged filters and gelling
sustainability
This Is Our Expertise
GreenTec Labs is a Veteran-Owned, ISO 9001 certified, and Minority Business Enterprise dedicated to advancing clean, efficient technologies. Our flagship product, DF5, is proudly made in America and EPA-registered, offering a breakthrough in fuel treatment for both gasoline and diesel engines. DF5 delivers benefits across a wide range of industries — from transportation and logistics to construction, oil & gas, and public works.

Join Us in Building a Greener Future
We specialize in fuel optimization and emissions reduction, providing solutions that meet the growing demand for greener, more cost-effective operations.
- Maximize fuel efficiency
- Lower emissions and environmental impact
- Protect and extend engine life
- Reduce operational costs
- Stay compliant with local, state, and federal regulations
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News & Articles
DF5: Proven Gains in Fuel Efficiency and Emissions Reduction
In today’s operational landscape, fuel efficiency and emissions...
How DF5 Enhances Engine Lubricity and Reduces Wear
Lubricity—the ability of a fuel to reduce friction...
DF5 Fuel Modifier: The Green-Now Solution for Efficiency, Longevity, and ESG Compliance
In an era of rising fuel costs, increasing...