|
I understand this and as I have read there are now LL-4 oils out there, but I am not so much concerned about warranty at this time. My car is about 3/5 to it original warranty mileage and I really don't want a warranty dictating what I do to my car and how I use it. I appreciate the tip though, but I am curious if moving up or down from 5W-30 would yield any positive or negative effects. I have been using BMW oils since break in and have changed oil every 6000 miles. Down the road I would like to improve certain characteristics of my car and power may be one of them.
|