Got out of dealer on Sat. 1st load on Sunday....about 2500 miles so far and everything is hunky dory....last 2 fills....25.89, 25.82 at 62-63 mph and a 1200 lbs load during that...and at 65-66 mph 23.76 and 23.91 ....all is good...
AND why did Mercedes get rid of this engine? and replace it...