Forged motors: What oil do you run?

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08-31-2006, 09:17 PM

#21

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I ran 10w40 dino oil for break in and the first two changes. Just switched to 20w50. Oil pressure is up a little at idle @42 psi. Hopefully consumption will go down some. I'll stay with that.

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08-31-2006, 09:43 PM

#22

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10x40 dino oil for break in and first two changes. Just put in Penzoil 20w50. Oil pressure is up some, @ 42 at idle. May go with synthetic 20w50 next.

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08-31-2006, 10:37 PM

#23

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Quakerstate "Q" Advance 5W-30. (Made by SHELL) API "SM."

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08-31-2006, 11:06 PM

#24

DONAIMIAN

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Quote:

Originally Posted by TS6

Also alot of rebuilt motors run a little looser clearances on the bearings, thicker oil keeps the pressure up.

When you put thicker oil in a motor you will see more pressure, but at the same time your reducing flow.

FWIW I used to run the M1 15w-50 but theyve since discontinued it and im back on 10w-30. I dont have a forged motor, but I would run the same thing regaurdless.

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