Thread: rebuild running cooler on 5 30 syn than 20 50 reg oil
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hardflex hardflex is offline
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Join Date: Sep 2002
Location: dfw tx
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Synthetic is supposed to less friction, which would explain the lower temps. I noticed the same drop in temps when I switched to synthetic.

Maybe a heavier wt synthetic would be in order?
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Old 09-24-2007, 05:35 PM
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