15w40 diesel oil, is this ok in an M42?

[dubsport87]

Hey folks Im kind of a noob with bmws. The guy I bought the car from a guy that recomended that I put 15w40 weight oil in my car. I go to the store and I cant find this stuff. I did find 15w40 but its for diesel engines. My question is, will I have any problems or concerns that might arise if I put this diesel oil in my nondiesel bmw. My 318is needs an oil change soon so any input would be appreciated.

[KenC]

Just use 10w40

[xphiledan]

the diesel oil will be ok. i read in a thread somewhere here that explained the difference, but i remember it saying the diesel oil was ok to use.

[xphiledan]

i get my 15w40 at walmart

[dubsport87]

i get my 15w40 at walmart

its weird that autozone didn't have any

[psyber_0ptix]

i get my 15w40 at walmart

I get rotella T6 5w-40 there too....cheapest around

edit: for the subaru

[mutty]

Check the dealership for the grade oil you should use. You would be surprised when you give them the mileage on the motor. I had a similar experince with a e36 328i. Bmw oil specs varies according to the mileage on the motor.

[StereoInstaller1]

I have been running 20W50 Rotella for 3 oil changes now on 2 M20s: seems fine. I know it is very high in zinc, which is lacking in most oils these days.

[HellzMindPlaya]

I have run it for about the entire time my m50 have been in my car (about a year) had no problems yet.

[dinanm3atl]

I have run the Shell Rotella T 5W-40. Great oil.

[b*saint]

Yes I used rotella t 15w40 in my m44 and it actually idles a little smoother.