Full synthetic 5W-30 formula offers 24X stronger protection against water intrusion than the industry-leading synthetic motor oil — it fights rust, corrosion, and other threats to help maximize vehicle life40% better wear protection vs. industry standards as tested in the Sequence IVB engine test25% better deposit protection with superior engine cleaning detergents as tested in the GMOD engine testMeets or exceeds all requirements of ILSAC GF-6A, API SP, API SN with SN Plus, API SN, GM dexos 1 Gen 3American made and formulated, from the Original Motor Oil brand trusted for more than 150 years