I just got a 1995 540I It has a little over 155k miles on it. What kind of oil should i run? I just threw some Mobil 1 0-40 synthetic in it, is that ok??

Check e34 FAQs

ooo aah, this should be interesting....I think there will be less Baskin Robins flavours when we're done here.. :stickoutt

I just put Mobil1 15w50 synthetic in my 540i with 116k miles on it. Seems to like it ok, no leaks or anything, but that depends on previous maintenance.

cooking oil ...

Mobil, although BMW recommends Castrol

Astroglide:D

^ goes for high viscosity:D

Astroglide:D

that's water based... You'll have to add more everytime you start your engine.

^ goes for high viscosity:D

Depends on your driving habits.

wow my mechanic said no 0 40 thats like water

im goin for some 10w40 :) royal purple

what about that royal purple 85w-140 that that sti guy used? should be thick enough to quiet down noisy lifters.

ive got 5w30 mobil 1. Full synthetic, same car, and tranny. I live in a much warmer climate tho, i should've gotten something thicker.

what about that royal purple 85w-140 that that sti guy used? should be thick enough to quiet down noisy lifters.

thats like molases

what about that royal purple 85w-140 that that sti guy used? should be thick enough to quiet down noisy lifters.


yup and blow up your engine :cool

thats so thick im surprised it comes out of the bottle

M1 Turbo Diesel Truck 5w40. It's got a premium additive package that is better than the standard M1.

We use a few different oils in the cars we maintain. I reccomend Lucus products or Valvoline depending on miles and condition of the motor.

i'm gonna start using royal purple. cars been sitting for a while so it definatly needs a oil change pronto.

Gee...that question has been asked since..... :rolleyes

BTW...BMW recommends more than just Castrol now. ;) There is an Oil Viscosity Chart in your owners manual as well if you choose to use something conventional...or another weight...pay attention to the temperature charts.

http://www.bimmerboard.com/members/q/original/e34%20Engine%20Oil%20Viscosity.jpg

For example...this is the oil viscosity chart in my e34 which has the M50TU engine:

http://www.bimmerboard.com/members/q/original/E34%20Oil%20Spec%20Chart%20M50TU.jpg

Astroglide:D

The kind that warms up? I hope anyway.

5w-40 lubro moly

As per the chart, 20w50 Castrol GTX, changed every 3-4k.

I use the oil from the dealership which is basically 15w40 Castrol oil along with the factory oil and air filter. All in all, it costs me roughly $25 to do an oil change with my discount. Seeing how it is so cheap, I just change it every 4-5k miles and the car runs completely smooth with no signs of sludge.

Lubro Moly 10W60

For a V8, I do amsoil 5w-40. If you use a straight 6 you can get away with 5w-30. I noticed that 10w-40 was way too heavy... believe it or not. Amsoil, Lubro Moly, Royal Purple, and Redline(if they make the right viscosity) are good synthetics. I use amsoil for the engine and redline for the transmission/radiator/etc.

Dead dino all the way.

As per the viscosity chart in the owner's manual, 15w40. Presently Castrol Truck and SUV synthetic blend.

Castrol Syntec. Mostly 5w40 and 5w50.

Have made a brew of 3 quarts 10w40 and 5w50 once or twice. The car seem to like it. No cold start rattle like you can get with heavier oils. I get a cold start rattle with any 10wX or higher oils in the winter.

I know, just use the 5w40 or 5w50. Just playing :)