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Old 05-04-2015, 09:08 AM   #4
The_Bishop
 
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From what I know about oil, you want to stay away from large-weight-range stuff when you have a tough environment for it to live in. A turbo'd LT1 qualifies. I'd try 10-30. It'll be more 'shear stable' than a 5-30, the oil pressure difference on startup between 5 weight and 10 weight would be negligible.

What's your hot oil pressure? Pinning the gauge? If so, I'd definitely try a 30 weight.
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Last edited by The_Bishop; 05-04-2015 at 09:09 AM.
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