Quaker State 550030990 Synthetic Blend 5W-30 Lubricant Motor Oil - 1 Quart It meets or exceeds the engine protection require by ILSAC GF-5 and is specially formulated to meet the GM dexos 1 specification Synthetic Blend can be mixed with other synthetic and mineral oils and is recommended for use in all vehicle applications under all driving conditions SAE 5W-30 may not be suitable for use in older engines Better protection against friction-related wear especially as temperatures increase Improved resistance to engine stress at high RPM's, short trips and under heavy loads