Originally Posted by dailydriver
Originally Posted by Patman
Originally Posted by dailydriver
^^^
Some 5W-30s are even up to 3.6 to 3.7 HTHSV.
True, the one I'm using is 3.58
Yup, same exact HTHSV as my current fill, albeit a very different oil than your (excellent) XOM choice.
I really like the specs on some of those Ravenol 5w30s! If they were easier to source up here I'd definitely consider using Ravenol in the Corvette!