Valvoline’s Restore & Protect is the first motor oil proven to reverse one of the most common causes of engine failure by freeing stuck piston rings and maximizing the life of the engine
Lexington, Ky.—Valvoline Global Operations has announced an industry-first technological development: Valvoline Restore & Protect is the first motor oil proven to unstick stuck piston rings, reversing one of the leading causes of engine failure.
“Stuck piston rings have long been considered a point of no return for an engine — a problem you could only fix by physically tearing the engine apart,” said Dr. Michael Warholic, Senior Global Technology Director at Valvoline Global. “By engineering a formula that actively reverses this damage, Restore & Protect is truly the first engine oil to help return piston ring function.”
Since Valvoline’s introduction of Restore & Protect in 2024, it claimed the title of the first motor oil proven to remove up to 100% of piston deposits with continuous use. Since then, Valvoline Global’s engineers and scientists have subjected engines to hundreds of thousands of miles of laboratory testing to gain additional understanding of the long-term benefits of Restore & Protect.
The validation, which includes extensive testing at Valvoline Global’s Ashland, Ky., Propulsion Lab, and real-world engine teardowns, proves the technology behind the formulation that makes this level of performance possible.
Restore & Protect was named a 2025 Product of the Year (USA) winner as the most innovative product in the Car Care category. It earned this recognition through a national study of more than 40,000 American shoppers who participate in the consumer-voted awards program celebrating product innovation.
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