red60R

Gave myself a little xmas present and finally got the Eurocharged tune for my 63, definitely wakes the truck up. Throttle response seems much better, truck runs smooth. Still monitoring mileage as I had heard I should expect better highway mileage, still around 17-18 mostly.

ML63 AMG

Awesome, give it another week or two as adaptations kick in and it gets even stronger. In theory you can get better gas mileage depending on conditions, but with that much power at your right foot, the temptation to use it will usually lead it to lower gas mileage lol

red60R

guess I should drive it really hard this week then :-)

executive13

You will not gain any gas mileage one bit. The only way you can tell is highway driving. Ive had my tune for a year. No difference in mileage.