Home›Products›Engine & Fuel SystemsEngine & Fuel SystemsSTP® has everything you need to keep your car running to its full potential. Explore STP® engine and fuel system products from fuel and oil additives to octane boosters, motor oil and more.Product Category Please selectEngine & Fuel SystemsFunctional FluidsProduct Type Please selectFuel AdditivesOil & Engine AdditivesSort by Please selectA to ZZ to ASort by Sort byA to ZZ to AFilterFilterProduct Type Engine & Fuel Systems Functional FluidsView ProductsView ProductEngine & Fuel SystemsPetrol Injector CleanerView ProductEngine & Fuel SystemsDiesel Injector CleanerView ProductEngine & Fuel SystemsOil Treatment for Petrol EnginesView ProductEngine & Fuel SystemsOil Treatment for Diesel EnginesView ProductEngine & Fuel SystemsComplete Fuel System Cleaner – PetrolView ProductEngine & Fuel SystemsPower BoosterView ProductEngine & Fuel SystemsPetrol TreatmentView ProductEngine & Fuel SystemsSmoke TreatmentView ProductEngine & Fuel SystemsHigh Mileage Petrol Injector Cleaner