Chevron Havoline High Mileage Synthetic Technology Motor Oil 10W-30 with Deposit Shield Technology are designed to help extend the life of engines. These are synthetic blend motor oils designed with special anti-wear cleaning and seal conditioning agents and contain added friction modifiers to help minimize oil leaks in higher mileage vehicles. They are outstanding at controlling deposits sludge and varnish that can hinder performance and fuel economy in an engine of any age. Havoline High Mileage Motor Oils with Deposit Shield Technology are also recommended for use in lower-mileage vehicles including new cars under warranty. They can be added to or mixed with other conventional part synthetic and full synthetic motor oils. Formulated with a combination of premium synthetic and conventional base oils they provide very good cold temperature performance. Havoline High Mileage Motor Oils with Deposit Shield Technology also work well in turbocharged gasoline and flex-fuel passenger car engines light duty trucks vans and SUVs where GF-5 or API SN Plus motor oil is specified. SAE 10W-30