Mobil 1 98HC59 Extended Performance 10W-30 Synthetic Motor Oil - 1 Quart Fully synthetic formula with Advanced supersyn System to prevents deposits and sludge build-up to enable long engine life. Excellent overall lubrication and wear protection performance under all operating conditions Extra levels of performance additives to provides outstanding engine protection at oil change intervals of up to 15,000 miles or 1 year, whichever comes first Outstanding thermal and oxidation stability for exceptional control of oil breakdown and helps maintain stable oil viscosity Provides exceptional engine protection to helps maintain long engine life and is compatible with engine seals Excellent low temperature capabilities for quick, cold weather starting - fast protection and extended engine life! Provides less stress on your starting system