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Old 07-14-2009, 12:33 PM
y2k600f4 y2k600f4 is offline
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Any Reason to run SAE 30 vs 10W30 ?
I know there are a lot of posts about the subject and varying opinions on the subject but my engine builder insists I run single weight 30 (valvoline) and not 10W30. What I have been reading 10W30 should be fine. It is a SBC 383 currently running Rotella 30W during break in but coming up to my 500 mile oil change. This is not a race engine (street) so I am thinking 10W30 should be fine. Also he wants me to run 1/2 qt of lucas oil stabilizer which I see no need to do either. I am guessing running single weight oils was the norm several years ago ?
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