Description Mobil 1 full synthetic motor oil is formulated for vehicles that are upgrading from conventional motor oil or synthetic blend motor oil, and vehicles that require full synthetic motor oil. It outperforms conventional oil, helps extend engine life, and provides guaranteed protection that is 1.5 times longer (up to 7,500 miles between oil changes) than the conventional and synthetic blend oil. Mobil Full Synthetic helps prevent sludge, deposit formation and to help reduce engine wear with a balanced additive system formulation. It has excellent resistance to oil breakdown, providing proven long-lasting protection, and maintaining oil viscosity at high operating temperatures. Mobil Full Synthetic motor oil is recommended for all types of gasoline-powered vehicles, including those with turbocharged engines found in passenger cars, SUVs, and light-duty vans and trucks.