Best oil for M60?

[Alpinewhite]

Hi All,

My Indy currently pours in non synthetic 20W50 (I dont know what brand it is). I am planning to change oil this time myself.

Which is the best Engine oil for M60? What should be the oil change interval? Can I switch to synthetic; will my car take it?

I live in Atlanta, GA area. Here it gets to around 90F in summer and around 30F in winter.

Thanks
Arun

[632 Regal]

Synthetic Mobil 1 0w-40, hard to find where I live so I try to pick up a few quarts anytime I drive by a store that carries it. You can change to synthetic anytime, no worries.

[Russell]

What oil viscosity does BMW NOW recommend for our e34s? Oils have changed a bit since the 89-96 time period. I suspect that BMW has changed thier specs a bit.

BTW, I am now trying Castrol Syntec 5w50. Seems to run reasonably quiet. I found Mobil 1 0w40 a bit noisy and sheared down quickly per used oil analysis.

[BillionPa]

M1 doesnt fair the best in UOAs, fine at 3K intervals, however Redline and Amsoil always do well, even up to 15K intervals sometimes.

I would do an autorx treatment on your engine during the oil change, use a 10W40 synthetic (cheap) then a 10W40 dino (also cheap) for the rinse.

I would do 2 autorx cycles then change to Redline 10W40 or 15W50 (if you track often)

[Russell]

Second the auto-RX treatment. Just finished the second treatment and rinse on my 525i. Seemed to help the car run smoother.

[onewhippedpuppy]

From what I have heard, M1 0W-40 synthetic is the only non-BMW oil that is recomended for our cars. Otherwise it's supposed to be the OEM 5W-30 (I think) from the dealer.

[BillionPa]

I use LubroMoly oil, 0W40 in the winter, and will be switching to 5W40 when i start an autorx treatment.

the 5W40 stuff is actually approved by bmw.

dont use 30wt in an E34 engine.