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p914 p914 is offline
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Join Date: May 2003
Location: WA state
Posts: 134
rebuild running cooler on 5 30 syn than 20 50 reg oil

So my rebuild is done and is finally tuned and dialed in. 2.0 liter to 2.7.
The oil temp averages 240 running on 20 50 regular oil and averages 217 on 5 30 synthetic. Seems like the 20 50 would run cooler as the 5 30 would be to thin.

The rings seated fine so I see no issue there.

Thoughts? Ideas?

I was thinking about a different oil cooler with a fan but if the synth runs cooler, why get one? Would the thinner synth eventually have a problem? I tried with both regular gas and premium.

Funny thing is the engine seems to run smoother with the 20 50.
Old 09-24-2007, 04:13 PM
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