ECU tune & gas mileage - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Mar 10, 2013 | 09:45 AM

dimf

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ECU tune & gas mileage

most ECU tune providers advertise better fuel economy as one of the benefits of ECU tune..

to those who actually did this - did you really get better mileage on your Cayennes after the ECU tune? By how much?

Mar 10, 2013 | 11:10 AM

4ocious

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I reflashed the ECU in my 09 MB ML550 and picked-up 1 mpg. Plus, my ML had more low-end throttle response and pulled a lot better. I'm going to reflash (going with Softronic) the ECU in my 10 CGTS and expect the same results.

Mar 10, 2013 | 10:41 PM

markdjr

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My experience has been that with the tune it is a lot more tempting to push the throttle, thus reducing my mpg, but increasing my fpg (fun per gallon) substantially more.

Mar 10, 2013 | 10:54 PM

rbb1991

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Quote:

Originally Posted by 4ocious

Why are you choosing Softronic? I'm debating on who to use as a tuner for my 08 CTT and just seeking information, reviews, reasons etc...

Mar 15, 2013 | 08:44 AM

gophaster

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This!!!!---->

Quote:

Originally Posted by markdjr

My experience has been that with the tune it is a lot more tempting to push the throttle, thus reducing my mpg, but increasing my fpg (fun per gallon) substantially more.

I have had tunes on just about all my cars over the years...(just about all of them have been turbocharged)...what I have noticed is that if I can control myself and drive "normal" I can in fact maintain the same fuel usage as prior to tune BUT it is VERY, VERY hard to not take advantage of the performance increase