No matter the age of a vehicle, critical engine parts are building up deposits, impacting fuel economy and performance. Formulated with Active Clean Technology, Valvoline Restore & Protect full synthetic is the first motor oil that removes up to 100% of deposits when used as directed. And it Liqui-Shield technology works to prevent future deposits. Deposits and varnish limit effective heat removal, leading to oil contamination and engine wear. As deposits build up, piston rings can stick and cause blow-by. Restore & Protect Motor Oil dissolves and entraps deposits, which are removed with the oil change. The full synthetic formula delivers 79% stronger anti-wear protection vs. GF-6 qualified oil and has enhanced thermal and oxidative stability.