Alright fellas I have a 2001 XJ sport and my oil psi is good when I crank it up right around 50. Whenever I drive 20+ miles my idle psi drops to 25-30. Is this too low? I just put a new pressure sending unit in. I haven't noticed the oil psi drop that much at idle. Is this correct? Thanks!

 

Mine idles at 20 psi when warm and driving down the freeway its around 40psi....

 

Your PSI sounds right about where it should be. How many miles on the engine?

 

It sounds good. right within range.

Also if it is the stock gauge it is not always perfect..

 

Mine is 30ish with 5W30 warm

 

You all must have alot of miles...

with 175,xxx i have 60 psi almost always... idles warm at 25-30 psi idles cold at 50 psi. any sort of driving it is at 60 psi even for a 5 hour all freeway drive....

(based off a mechanical gauge)

 

Mine has 265K on it, cold it will be 70 ish psi, warm 30 ish. I am going to go down to 0W30 next oil change to help with cold oil pressure. If that doesn't help down to 5W20.

 

It only has 107k that's the thing. When I drive and when I first crank up it's around 50-60 psi, but when I drive it drops down. I think the last oil change I had the guy put 10w30 in it. I'm debating adding some Lucas. Is it worth a shot.

 

Sweet! I just noticed your from Tally Mental. I'm only about 3 hours northwest. Close to Marianna, Fl.

 

Oh, no, not marianna haha!! Use 5W30, noooooo Lucas!!

 

Yea man I live on the Bama/Florida line. I paid my dues at Chipola College for two years lol.

 

I moved to Houston and went to UTI, crap, been outta there, almost 10 yrs now. Grew up here though. Seriously stay away from Lucas. Where you near Malone?

 

lol I can prolly hit a golf ball to Malone man.