TransAm219

I have seen a chart showing different types of bearing wear and the causes and I know that bearings can be affected if you lug the motor down

I agree with a previous post , if you are under 1k in 6th you are probably in the wrong gear . Other then that I dont think that our cars are subject to being lugged down like a truck or a car used for towing .

also it is good to see that my oil pressure is the same as everyone elses , sometimes i worry thinking it is too low ( on a a4 car )

GREGG 97Z

That's a good one

6th gear was usefull though when my car was completely stock. After doing a few mods especially after headers my car didn't like 6th with the stock rear. 6th became much more usefull after I went to 4:10's and feels even better now after the cam

My95Z

what coul dit be if my oil pressure is really low, like 18 idle and crusing at 80 it is around 35 maybe

IrocManiac

Is that low???? Most of what I've seen shows idle to be right around 20 and cruising at 80 you're turning about 1900 rpm or so...I'd say 35 to 40psi is about right...your gauge could be off a little...

mobleman

I don't think your pressure is all that low. It's the same as mine and I'm not at all worried.

According to the helms manual the minimum pressure at operating temperature should be no less than:

6 psi at 1,000 RPM
18 psi at 2,000 RPM
24 psi at 4,000 RPM

Your values are about twice the minimums.

But to get back to your original question:

-The dash mounted oil pressure guage is not that accurate, If you're concerned, get a mechnanical gauge and check it. When I did, I found that my idle pressure was 5 psi lower than the dash gauge indicated. Change out the oil pressure sending unit on the engine, they can wear out after a while.

-Engine oil could have thinned out if it's old. try changing it. Some use 10w30 in place of 5w30 to alleviate this problem.

-Or, the bearing clearances in the engine could be on their way out.

Their are other more in depth discussions on this if you search for them