Quaker State 5W-30 Advanced Durability Motor Oil - 1 Quart Bottle, (Pack of 12) Superior lubrication at low and high temperatures delivers unsurpassed protection against friction-related wear Improved resistance to engine stress at high RPMs and under heavy loads Superior resistance to thermal and viscosity breakdown Exceeds the most stringent car manufacturer requirements for cleanliness and protection - including GM dexos1TM