STP® Ultra 5-in-1 High Performance Engine Treatment STP® Ultra 5-IN-1 High Performance Engine Treatment, the most advanced STP® Oil Additive ever made.
Formulated to Help
- MAINTAIN MAXIMUM HORSEPOWER
- ENHANCE OIL DURABILITY
- CLEAN AND PREVENT SLUDGE
- PREVENT POWER-ROBBING FRICTION, HEAT AND WEAR
- PROTECT AGAINST RUST AND CORROSION
Since 1954, STP® oil additives have been helping engines withstand the toughest conditions. STP® Ultra 5-in-1 formula is scientifically engineered to enhance your motor oil’s effectiveness. It has been formulated to help maximize protection levels and performance.
Add one bottle to 4-5 quarts of oil during or between oil changes.
STP® Ultra 5-in-1 Fuel System Cleaner is safe for all gasoline engines.
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