0w oil instead of 5w to increase timing chain longevity ?
0w oil instead of 5w to increase timing chain longevity ?
Author
Discussion

haswellrefresh

Original Poster:

1 posts

Thursday
quotequote all
Hi,
I want to buy a BMW X3 F25 with either B47 or N57 engine. I would be more excited of course with N57.
Since BMW uses timing chain i was told that to maximise chain longevity it would be good to use 0w oil instead of 5w because timing chain tend to wear at cold start until it warms up. I live in France, in moderate climate 5w is what most people use here.
What do you think ?



danb79

13,189 posts

97 months

Thursday
quotequote all
haswellrefresh said:
Hi,
I want to buy a BMW X3 F25 with either B47 or N57 engine. I would be more excited of course with N57.
Since BMW uses timing chain i was told that to maximise chain longevity it would be good to use 0w oil instead of 5w because timing chain tend to wear at cold start until it warms up. I live in France, in moderate climate 5w is what most people use here.
What do you think ?
Stick with 5W30 - you'll be fine

Frequent oil & filter changes are paramount, so once per year at a minimum unless you do high miles, and then do it every 6 months

Both engines are solid if looked after