Best oil for my 2002 BMW 325 CI
I just bough a 2002 BMW 325 CI with 160,000
miles ... It doesn't smoke at all! From a cold start,
while driving, or just idling ... no smoke at all ! I am
the third owner and want to make sure I put the
best oil in it to keep it running as well as it is ... I
was told to use Castrol oil 40wt but also have
heard many others say that they're using mobile 1
Oil not sure of the .(wt) ... both been synthetic .
I'm the third car owner, and the second owner, she
had no idea what Oil was used in it.
Recommendations for what oil I should use ?
Thanks