Oil pressure too high? GMC 270

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Re: Oil pressure too high? GMC 270 50 GMC #85213 04/14/15 12:31 PM
Joined: Jan 2015 Posts: 376 Oregon, USA T TJ's Chevy Contributor
TJ's Chevy Contributor T Joined: Jan 2015 Posts: 376 Oregon, USA	It sounds healthy though! lol I agree with whats been said...Straight 30 or 10-30 should help. 1966 C10 292/tko600 http://67-72chevytrucks.com/vboard/showthread.php?t=596643 1964 C20 292/sm420

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