STP Ultra 5-in-1 Engine Treatment is a high-performance formula designed to provide comprehensive engine protection and efficiency. It cleans and conditions vital engine components, reduces friction, and improves oil stability, ensuring smoother and more powerful performance.

This advanced treatment helps prevent sludge and deposit buildup, minimizes engine wear, and enhances fuel economy. It also protects against high-temperature breakdown and extends the life of both petrol and diesel engines, even under extreme conditions.

Easy to use and compatible with all engine oils, STP Ultra 5-in-1 Engine Treatment works in just one application. Simply add it to your engine oil to experience cleaner operation, reduced friction, and long-lasting engine health.