Doesn’t your classic car deserve the best?
We tested the best selling fuel stabilizers on the market today and the results were disappointing. They ranged from average performance to no performance to actually degrading the fuel faster than if it was left untreated. We knew we had to develop a better solution.
We used ASTM D525 for Oxidation Stability testing, and the performance results are undeniable. HappyFuel is the best fuel stabilizer available on the market.
If you have a car with a gas tank up to 15 gallons, HF-15 is for you. For vehicles with a tank closer to 20 gallons choose HF-20.
HAPPYFUEL HF-15 Premium Fuel Stabilizer
$13
HAPPYFUEL HF-20 Premium Fuel Stabilizer
$15
"We found HappyFuel® to be the best fuel stabilizer for storing our vehicles."
Jim C.
Owner - Motor City Grind
"I often store my vehicles for months between use, I trust HappyFuel® to keep my collection ready to be driven anytime."
Paul C.
Prominent Classic Car Collector