Poorer Fuel Economy After Tune?
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MBworld Guru
Joined: May 2006
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
Poorer Fuel Economy After Tune?
I have had my Eurocharged tune since January and I love it! The only thing I have noticed is that my fuel economy has dropped off since the tune. Yes, I know that I am more prone to romping on it. Even when I baby it, however, it seems that my mileage is around 2-3 MPGs lower than they were pre-tune.
Has anyone else experienced this from a tune? From what I have heard from others, their fuel economy increased.
Has anyone else experienced this from a tune? From what I have heard from others, their fuel economy increased.
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Joined: Jun 2012
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From: Gilbert, AZ
2008 SL600
I drove to CA and was excited that I had seen 17.2 after about 450 miles lol
My average since I've owned it is 13.4 hahahahahahaha After I get the tune done, I HOPE it doesn't go lower than that, eek.
My average since I've owned it is 13.4 hahahahahahaha After I get the tune done, I HOPE it doesn't go lower than that, eek.
Senior Member
Joined: Oct 2010
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'08 E63 Wagon
Lead foot in the first few weeks to enjoy the new found power is usually what leads to worst MPG, after you settle back in your normal driving patterns MPG should go back up. That's what happened to me and others.
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
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Thread Starter
MBworld Guru
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From: Irvine
04 CL55, 05 E500S4, 15 BMW i3 REx
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From: Houston/ Austin /Toronto / UAE / Minneapolis / Orlando /Cincinnati
Eurocharged Performance ML63 and TT lambo
MPG will go up as stated, as the fuel mixture will be leaned. I would suggest clearing the adaptations to see if that corrects any issues you may have. The only time MPG goes down, is from right foot syndrome that is usually caused post tune..
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e55 amg
not to thread jack, but im kinda curious what people see for mpg's. ive had my car for a few months now, and usually have no problem keeping it around 14.5-15.5mpg around town and about 21 on the through way. hell i even managed to get it to read 23.5 mpg the one day 
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From: Folsom, CA
2005 E55 AMG
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From: Richmond, VA
2007 E63 AMG
all about the smiles per gallon
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From: Laguna Niguel
'94 SL600,'05 SL600,'06 S65,'07 E63,'14 E63S,'09SL600 all sold, ‘15 S65,‘18 E63S,'17 SL65, '17S65Cab
I have two Eurocharged tunes, an S65 and an SL600. Both have increased fuel mileage in expressway driving. At a steady 75 to 80 the S65 is 18.5 and the SL600 is 22 MPG.
In local driving I have seen no change in fuel consumption. These are both BT's, the supercharged engines could respond differently to a tune.
In local driving I have seen no change in fuel consumption. These are both BT's, the supercharged engines could respond differently to a tune.
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Joined: Feb 2009
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From: Central WI (BFE)
SL55, ML500 & Acura TL
I have had my Eurocharged tune since January and I love it! The only thing I have noticed is that my fuel economy has dropped off since the tune. Yes, I know that I am more prone to romping on it. Even when I baby it, however, it seems that my mileage is around 2-3 MPGs lower than they were pre-tune.
Has anyone else experienced this from a tune? From what I have heard from others, their fuel economy increased.
Has anyone else experienced this from a tune? From what I have heard from others, their fuel economy increased.
