oil pressure q's

[bill2]

What is an average oil pressure @ 3K and idle on an 88 t1. The spec i found at 3K was pretty broad 25-90psi.

[turbododge89]

mines an 89 2.5 t1 but at idle once its warmed up its about 25psi and by 3k its at 50-55psi. the rule of thumb is 10psi for every thousand rpm. 50 is pretty much good enough for any rpm

[4sfed4]

Quote:

Originally posted by turbododge89 mines an 89 2.5 t1 but at idle once its warmed up its about 25psi

Thats very high!

You can go as low as 6-7 psi at a hot idle depending on your oil viscosity. Heck, I think minimum spec at idle is 4 psi or so.

[turbododge89]

really? well that makes me feel good, i run mobil 1 10w 30, is that what everybody else runs or is the 15w 50 better

[glhsken]

10 w 30 is the "common" choice

[bill2]

Larry, thats the spec i found, @ idle as low as 4psi !

[LeGweg]

Good to know that

However, on my car, the "low oil" light goes on at idle when hot. Goes off as soon as I touch the "go" pedal. The factory oil pressure gauge also show low but I installed a mechanical oil pressure gauge and this one shows 10 psi.

I was also wondering what's the normal engine temp for our cars?