Quote:
Originally Posted by Ropes
Those oils are not subject to combustion blow by, fuel or moisture in the air. They break down over use not time. You are supposed to change spark plugs every 30k/3 years with BMW. If you only drove 15k over 3 years, would you change them?
|
Excellent point. I don't think that anyone here thinks that the overly aggressive app-driven diff oil change recs are driven by anything but profit by those lovely people at BMW. Thank goodness for the indy mechanics for those of us who lack the DIY skill-set.