Oil pressure on jeep-4L in line 6


#1

when I fire up my jeep oil press. reads about 65. after 4-5 minutes it goes down to 30, and remains there, with slight increase if I accelerate quickly.

is this normal?


#2

Sounds okay to me

Some guys only dream of 30psi, let alone 65psi


#3

The rule of thumb is you want to see 10 PSI per every 1,000 RPM’s.

Tester


#4

yeah, I was wondering if it staying at 65 and taking 5 min before gradually going to 30 was a problem.

its the same summer and winter pretty much


#5

changing oil made little difference if any


#6

@wesw you don’t have a problem. If it goes to 10, post back.


#7

My Supra will show about 45psi cold, and drop to 20 when warm at idle. Cruising, it runs up to 45 psi warm. Just turned 289, 000 miles. 3L I6.


#8

thanks guys, I was used to my old truck


#9

Different engines have different specs for oil pressure. Yours sounds good/normal. Keep changing the oil on time.