Note: German Castrol is now:Hello to all.So Ive been reading around and havent found a truly definitive answer.Mobil 1 0W-40 Or German Castrol 0w-40?I figured why not ask the guys and or gals on the forum.Will be the first oil change for the G8.
Well said. Surprisingly enough I take mine to the dealer for the changes cuz they are cheaper than the other shops around. They use Mobil products so I just do conventional 5w-30 as recommended.You'll get different replies and I feel that your major brands are all fine. Mobile 1,penzoil,castrol,royal purple. People have thier favorites. People also have difference of opinion on when to change it too. I do mine between 5 and 6 k . Just stick with the 5w30 full synthetic whatever the brand you go with . Some do 0w30 and seem fine too, but the manual says 5w30 and so I stick with what is recommended by the manufacturer.