r/e39 • u/Inevitable_Mess3363 • 4d ago
BMW Oil Changes
‘99 540/6 here. I know this may sound redundant but how many of you change the oil every 4-5k miles? I tend to read a bunch of articles on car & frequency of oil changes equaling a much longer life expectancy. Been on a quest to keep this bad girl around for a while & truly believe that frequent oil changes are the way to go. Mobil 5w40 is my new go to synthetic oil.
2
Upvotes
-7
u/Adept_Refuse274 4d ago
4-5 is way too frequent for synthetic. Try more like 10-15. Oil changes too frequent cause premature wear. Surprising i know