Hello all,
I have a 91 BMW M5. It has a DOHC 3535cc inline-6 with bucket tappets. 7250rpm redline, 310HP/265TQ stock. Owners manual specifies 15W-40 or 15W-50.
I have been using Kendall recently per recommendation by Frank Fahey, a known BMW engine rebuilder out of San Diego, CA.
VOA has left...