FormulaShell 5W-30 motor oil is one of most common viscosity grades recommended for newer vehicles. It also has superior performance in colder temperatures and prevents sludge build-ups and deposits. This specially formulated oil protects the entire engine and improves fuel economy. It is compatible with other synthetic and conventional oils and exceeds vehicle manufacturers requirements. For best results use the grade of oil that is recommended for your particular car or truck. FORMULASHELL CONVENTIONAL MOTOR OIL meets or exceeds: North American warranty requirements for U.S. European and Japanese cars and light trucks and small power equipment generators and off-road equipment with gasoline and gasoline turbo-charged engines where API SN SM SL SJ etc. oils are specified Protection for extremely high temperatures. Protection against harmful deposits and acids which aids in a clean running and lasting engine. May be used at any time in an engines life-cycle and is fully compatible with conventional engine oils.