In addition to removing deposits, Valvoline has discovered another ability of its Restore & Protect motor oil, one that it's calling an industry first.

As Americans keep their cars for longer, Kentucky-based Valvoline says one of its synthetic oil products can turn back time in an engine.

Valvoline Global Operations has announced a breakthrough discovery regarding its Restore & Protect Premium Full Synthetic Motor Oil: It has the ability to free stuck piston rings, which, according to ...