Valvoline launches a motor oil that frees stuck piston rings

Valvoline Restore & Protect removes piston deposits and has undergone extensive testing and real-world engine teardowns

Valvoline Global Operations has announced the development of Valvoline Restore & Protect, a motor oil that is said to be the first to prove effective in reversing one of the most common causes of engine failure, which involves freeing stuck piston rings.