98 Tahoe Low Oil Pressure

My 1998 Tahoe has 103,000 miles. Runs great. Never any engine noise and doesn't use any oil. Lately oil pressure at coldstart up goes to about 55-60 lbs (normal). After fully warmed up, pressure drops below 40lbs at highway speed and down to about 20lbs at idle. Isn't this too low? Engine still runs great, no other probelms.
Thanks

That pressure seems to be ok to me. I have a 99 suburban at idle 25 cold 60. Milage 54000. What weight of oil are you using? That can also make a difference.
Hope this helps

That pressure seems to be ok to me. I have a 99 suburban at idle 25 cold 60. Milage 54000. What weight of oil are you using? That can also make a difference.
Hope this helps


Thanks for input. It just seemed a little low to me. I use 5w30 and change every 3500 miles. Never used any other weight.

My 1998 Tahoe has 103,000 miles. Runs great. Never any engine noise and doesn't use any oil. Lately oil pressure at coldstart up goes to about 55-60 lbs (normal). After fully warmed up, pressure drops below 40lbs at highway speed and down to about 20lbs at idle. Isn't this too low? Engine still runs great, no other probelms.
Thanks

Nope, there's nothing wrong. My 99 hoe pretty much does the same thing yours does. Runs like a raped ape. I think the minimum standard is like 7 lbs for every 1000 rpm. Somebody correct me if I'm wrong.