A case FOR 5w-30 vs 5w-20

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^^^Some 5W-30s are even up to 3.6 to 3.7 HTHSV.
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Originally Posted by dailydriver
^^^Some 5W-30s are even up to 3.6 to 3.7 HTHSV.
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True, the one I'm using is 3.58
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Originally Posted by Patman
Originally Posted by dailydriver
^^^Some 5W-30s are even up to 3.6 to 3.7 HTHSV.
wink.gif



True, the one I'm using is 3.58
smile.gif



The two I use are 3.46 and 3.68.

I find this thread interesting though. It reminds me of the philosophy that an engine will make the most power and run the most efficient right on the verge of grenading itself.
 
Originally Posted by Patman
Originally Posted by dailydriver
^^^Some 5W-30s are even up to 3.6 to 3.7 HTHSV.
wink.gif



True, the one I'm using is 3.58
smile.gif



Yup, same exact HTHSV as my current fill, albeit a very different oil than your (excellent) XOM choice.
wink.gif
thumbsup2.gif
 
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.
wink.gif



True, the one I'm using is 3.58
smile.gif



Yup, same exact HTHSV as my current fill, albeit a very different oil than your (excellent) XOM choice.
wink.gif
thumbsup2.gif



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!
 
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