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65chevysub · 07-16-2015, 10:49 AM

Here in Az I run 20w50 during the summer and 10w40 during the winter in my 283. My problem is my gauge reads very low after it gets warmed up. When I first start it, it reads about 50psi.

07-16-2015, 10:49 AM	#17
65chevysub Registered User Join Date: Feb 2013 Location: Cottonwood, Arizona Posts: 1,388	Re: Which grade oil should I use for my motor? Here in Az I run 20w50 during the summer and 10w40 during the winter in my 283. My problem is my gauge reads very low after it gets warmed up. When I first start it, it reads about 50psi.