They say you have to run premium in the 420 and 560 but you can actually get away with regular in those cars.
We run regular in the 560 SL's, but they'll ping in high summer when you put your foot in it. So they tend to get premium then.
-- Jim _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
