Thanks for the tip on Castrol 5W-40!
I had previously looked at Castrol Edge EURO 5W-40 A3/B4 but it does not meet MB 229.51 (I have a 2008 Sprinter 3500 cab-chassis).
Now I see that Castrol Edge EURO 5W-40
TURBO DIESEL "exceeds MB 229.51" and is on the Mercedes Bevo list. My short list is now longer by one!
Castrol® Edge Euro Car is an advanced full synthetic motor oil formulated to improve engine durability in European cars. Find out if you can benefit from switching to Castrol Edge Euro Car formula.
www.castrol.com
Unfortunately, it does not seem to be available at any of the usual vendors, including the ones Castrol recommends. They have plenty of Castrol, just not that flavor.