Mobil 1 10W-30 High Mileage Full Synthetic Motor Oil, 5 qt.;

10W-30 Advanced Full Synthetic Motor Oil Mobil 1 High Mileage engine oils are fortified with seal conditioner to help prevent leaks and help extend engine life in vehicles with more than 75,000 miles. Mobil 1 advanced protection delivers outstanding performance: Chosen by over half of all Nascar teams The official motor oil of Nascar Chosen for factory fill by many of the world's leading auto manufacturers The world's leading synthetic motor oil brand