Engineered with a special blend of high-performance detergents, cetane and lubricity improver, STP® Ultra 5-In-1 Diesel System Cleaner is our most advanced formula, designed to bring out the best in your car.
So, if you would like to enhance your engine and give your car the ultimate clean up resulting in more miles to the gallon, STP® Ultra 5-In-1 Diesel System Cleaner is perfect for you and your vehicle.
Engineered with STP® WEARGUARD, a special blend of high-performance detergents, power boosters and friction modifiers, STP® Ultra 5-in-1 Petrol System Cleaner is our most advanced system cleaning formula.
Give your car the ultimate clean, resulting in deposit reduction, restored performance, and more miles to the gallon with STP® Ultra 5-in-1.