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View Full Version : What kind of motor oil is best,,,535i


aton
07-09-2004, 10:54 AM
What is the best kind of motor oil for my 1990 535i E34

thanks...
G Feller
07-09-2004, 11:01 AM
That might influence the answers you get.


What is the best kind of motor oil for my 1990 535i E34

thanks...
jjg43
07-09-2004, 11:16 AM
What is the best kind of motor oil for my 1990 535i E34

thanks...
winfred
07-09-2004, 11:38 AM
i run castroil gtx 20w50 in both my bimmers 90 325ism and 90 535ia, i like 20w50 in our hot as **** climate on motors without hydrallic lifters (m10/20/30), and 10w40 with hydrallic lifters (m50/52/60/62)
Derek A.
07-10-2004, 10:02 AM
summer=mobil 1 15w50 winter=mobile 1 0w40

Derek.-
Russell
07-10-2004, 10:14 AM
Been running Mobil 1 15w50 year round. Just switched (last week) to Mobil 1 0w40 and car seems quieter on first start, smoother and seems to have a bit more get up and go. As we seldom see temperatures in Kentucky above 95 or below -10, 0w40 seems like a good choice.

BTW, my indy likes Mobil 1 15w50 on older cars. Says they were not really designed for lighter weight oils! It is my understanding that 0w40 is not just a lighter oil! Anyway, I followed the experiences of the board members in this case.

Just my 2 cents.


summer=mobil 1 15w50 winter=mobile 1 0w40

Derek.-