Registered
Join Date: Jul 2003
Location: Back in B'ham, AL
Posts: 3,461
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Water evaporates at 100*C or 212*F.
If you never get that oil pass 80*C you might have condensation/water in the oil; however that would turn the oil milky not bubbles My2c.
May be too many "short trips" not allowing the oil to heat up properly. Take the car for a long hard drive - checking the temp gage to be sure all is OK.
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