Most anti/fr has aluminum protection, however Mercedes uses ALL aluminum engines & most a/fr doesn't contain the same additives as this special blend.
Checked the MSDS today & Valvoline is listed as only supplier. On older cars with Cast-iron blocks I'm sure that auto-parts store a/fr will do. Remember to flush system & replace a/fr every 2-3 years, EVEN if the freezing point is OK the anti-corrosive additives will fail!
MERCEDES BENZ MASTER GUILD TECHNICIAN
ASE MASTER TECHNICIAN
27 YEARS DEALER M.B. Shopforeman
190E 2.3 ITS RACECAR
1986 190E 16V