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#532083 - 08/19/08 03:42 PM Oil pressure
STEVE1103 Offline
Member

Registered: 04/13/06
Posts: 14
Loc: LI, NY & Lakeville, PA
327 Marlin 1966, what should the oil pressure be hot and cold at idle, has 10W 30 in it now and it seems low, 25 cold, and 15 hot. Thinking about putting 20W 50 in to bring it up some. Thanks

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#532491 - 08/21/08 04:35 AM Re: Oil pressure [Re: STEVE1103]
simplyconnected Offline
Member

Registered: 11/06/07
Posts: 841
Loc: Detroit (Royal Oak), Michigan
You're in the ballpark. Hot, a healthy oil pressure would be 15-20 at idle, and 30-40 over 1,500 rpm (for 10W-30). I wouldn't change oil viscosity. You're doing good where it's at. 20W is too thick when it's cold.
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