Hot oil psi at idle

[svcattle]

Here's what my oil psi looks like after an hour drive and engine At idle

[Dvldog8793]

Taking into account that the oil gauges in these trucks are notorious for being not-right. I would say your reading is normal. My truck was reading much lower than that and I changed out the OPS and I gained about 3-5 PSI and the needle steadied out. Many things can effect the gauge, if you want to know what it REALLY is, hook up a mechanical gauge temporary.
I also switched oil to an amsoil 20-50 and have had VERY good results across the board, plus it is a high zinc oil.

[svcattle]

I am going to switch to mystic 15 50 .

[JohnC]

I am going to switch to mystic 15 50 .

Why? 30 psi at idle is way more than enough.

[svcattle]

I like mystic oil might just go with 15 40 but the 15 50 might slow my blow buy down a hair

[trbankii]

What do you have in it now?

[Robyn]

A lot of the Squirter engines will drop to 10 psi hot, which to me is SPOOOOOOOOOKY.

I prefer a hot idle of about 25 and running hwy at 50.

The new 20-50 oils should help the pressure some.

All those LEAKS down under don't help at all :eek:

If the bearing clearances are all down on the tight side the pressures are fair, but when you build one with .0025" clearance in the bottom things get alarming.

Swap out the first 2 main bearings with the old style that do not have the holes for the squirters.

The back cylinders are the ones that most need the extra cooling.

[arveetek]

Here's what my oil psi looks like after an hour drive and engine At idle

Looks good to me.

Casey

[svcattle]

What do you have in it now?

John Deere 15 40

[john8662]

I'd stay away from Mystic, that stuff used to be good but I think reformulated in the past 5 years. Used to you could take an oil burning engine and put the 15w50 in it and it would slow down. Now, it's the opposite take an engine that doesn't use oil and watch it become an oil burning rig.

I'm swapping everything to Delo and not looking back.

John

[svcattle]

I'd stay away from Mystic, that stuff used to be good but I think reformulated in the past 5 years. Used to you could take an oil burning engine and put the 15w50 in it and it would slow down. Now, it's the opposite take an engine that doesn't use oil and watch it become an oil burning rig.

I'm swapping everything to Delo and not looking back.

John

I'm running mystic 1540 in the combine no problems so I think I'm going to switch every thing