Ethylene glycol-based coolant concentrate. Protects metals and alloys found in modern engines and provides excellent year-round protection in modern engines.
Inorganic Additive Tec...
STP DIESEL INJECTOR CLEANER Unclog dirty injectors with just one treatment.
RESTORE PERFORMANCEREDUCE EMISSIONSSAVE FUEL STP Diesel Injector Cleaner is specially formulated to help...
High-viscosity formula is specially formulated to help fight metal-to-metal friction by providing a thicker cushion between moving engine parts.
Protect against engine wear.
Reduce...
STP® Power Booster is designed to increase the octane rating in petrol and clean the combustion chamber to allow vehicles to perform at their optimum level.
Designed for petrol eng...
STP Petrol Injector Cleaner is specially formulated to help remove power-robbing deposits from fuel injection systems.
It also smooths out rough idling, helps to reduce fuel consum...