I do not know what these Mercedes technicians did but I like it I did a fuel check last night... Average 66 miles an hour and I got 24.8 miles per gallon usually I get in around that running 63 62 mile per hr
oh boy...big gamble there buddy...if that cancels on ya....not wishing you bad luck hope it doesn't mind you...you could be empty all weekend...happened to me a few times till Learned my lesson...