Originally Posted By: Crobinson16
OK I understand now, I guess I didn't take notice to the " typical" wording, for now I guess I will stay with the Mobil FS 0-40 in my 2011 Silverado 6.2 .
If it does not say "approved," it is marketing gimmick.
Plus, cst of 14.2 and HTHS of 3.75? Oils with 14.2cst have HTHS 3.8-4.0.