Mobil 1 Extended Performance 10W-30 Full Synthetic Motor Oil, 5 qt: * Advanced full synthetic formula helps to prevent deposits and sludge build-up to enable long engine life * Excellent overall lubrication and wear protection performance under many operating conditions, from mild to severe * Precise balance of performance additives helps to provide outstanding engine protection at oil change intervals of up to 15,000 miles or 1 year, whichever comes first * Outstanding thermal and oxidation stability * Exceptional control of oil breakdown helps maintain stable oil viscosity * Helps to maintain long engine life and is compatible with engine seals * Excellent low temperature capabilities * Quick cold weather starting for fast protection and extended engine life * Helps to provide less stress on your starting system