Bring the engine to the maximum performance thanks to the special advanced formula concentrated at the base of the innovative Stp Wearguard technology. Increase performance by optimizing ignition and combustion Reduce friction in the cylinders and injectors by lengthening their life Remove deposits from injectors, power supply system, valves and cylinders by preventing corrosion Reduce emissions and the formation of deposits from the exhaust system Frequency of use: every 6,500 km. Compatibility: with other STP additives, suitable for all old and new generation engines, also equipped with catalytic converters. User and helps us to offer a better service to buyers: we kindly ask you to contact us For any problem, before leaving negative or neutral feedback. If you don't express your satisfa.
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