Functional Fluid, Lubricant, Grease (including Additives)

Castrol Heavy Duty 30 Motor Oil is a monograde oil engineered for greater protection against thermal breakdown. Heavy-duty formula provides maximum engine wear protection in warm climates; designed for use in temperatures above 40°F. Contains dispersants, antioxidants, detergents and varnish inhibitors that help prevent ring-sticking and build-up of harmful engine deposits. Engineered for greater protection against thermal breakdown. Exceeds all passenger car and light-truck manufacturers' warranty requirements for the protection of gasoline and turbocharged engines where API SM, SL, SJ or SH is recommended.