Hello,
I have a 1978 2wd C10 (V8-305) 130k miles (runs good)
After I drive it and it warms up, sitting in drive at a light the oil pressure
starts dipping down pretty low.
It has the original gauge , and reads around 15 when cold,
When it starts dipping the needle gets close to 0, it will
Go up a little of I rev it in neutral
I tried a little thicker oil (sae30 & 20w50) still the same.
Should I change the oil pump? Also if so can I perform this
With engine in the truck, and are there any brand recommendations
To try and keep this to doing it once?
Thank You in advance!!!