Mobil 1  10W30 Grade Synthetic Motor Oil is the viscosity  so popular amongst Do-it-Yourselfers. It provides excellent all season  protection in a wide variety of vehicles. Mobil 1 10W30 is recommended  for all types of modern vehicles including high-performance turbo-charged  supercharged gasoline and multi-valve fuel injected engines found in passenger  cars SUVs light vans and trucks. Mobil 1 10W30 is a general purpose engine oil  for all types of vehicles where a 10W30 viscosity is recommended. Mobil 1 is not  recommended for 2-cycle or aviation engines unless specifically approved by the  manufacturer.