Is my oil pressure Low? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Arl37 · 12-10-2011, 08:31 PM

1972 307 in 69 C10. See below pics. Low reading is at idle when warm. High reading is driving at normal highway speeds. I have read that hash marks on gauge are for O-15-30-45-60 psi. If that is correct then I idle at 5 or 6 psi and at about 30 on freeway. Is this low or normal for a high mileage engine? Name: IMG_0429.jpg
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Runs smooth no knocks. Thinking of rebuliding before I paint but why do it if engine is Ok?

12-10-2011, 08:31 PM	#1
Arl37 Registered User Join Date: Jul 2011 Location: Valley Center, Ca Posts: 277	Is my oil pressure Low? 1972 307 in 69 C10. See below pics. Low reading is at idle when warm. High reading is driving at normal highway speeds. I have read that hash marks on gauge are for O-15-30-45-60 psi. If that is correct then I idle at 5 or 6 psi and at about 30 on freeway. Is this low or normal for a high mileage engine? Runs smooth no knocks. Thinking of rebuliding before I paint but why do it if engine is Ok?



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