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Discussion Starter #1
I read in an engine rebuild book a while back that oil pressure shouldn't go over 65. I just put Mobil1 15W50 syn in my 327 and and my gauge went from the 58-60 at idle to about 70-72 at 65 mph. (friggin' tach is broken so I can't give RPM)

Should I back of the weight and go with a 10W40? I want to stay with a syn oil but Mobil1 does not make a 10W40 syn. :-(

Thanks for any info,
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