I know it's dependant upon type of driving etc., but I'm seeing 6 mpg improvement with my latest flash from EVOMSit. My driving style has not changed between programs.

Previously I was getting right around 17 mpg and now I'm seeing right around 23 mpg.

Typical driving entails commute on highways (no freeway) 20 miles to and from the office. Mostly stop and go between lights with mixed speeds ranging 30 - 60 mph - occasional blast in second or third gear, but cruising in 3rd most of the time.

Previous flash was the EVOMS/GIAC GT640 and now I'm on the EVOMSit GT660.

What are you guys seeing and on what program/equipment?

 

damn that's good! i see 14 ~ 15 mpg...

 

So your "new" gas mileage is based on how many tanks of fuel? What octane?

 

2 tanks of Chevron 91 octane - same as before

apples-to-apples

 

How many miles? About 600?

 

I have also noticed an increase in mpg since moving to Evomsit.

 

Since your car now has fuel injectors, the MPG calculated by the on-board computer is inaccurate. The on-board computer was programed for OEM injectors, so once you install larger ones, the MPG reading goes out the window.

If you're calculating MPG the old fashioned way, disregard the above.

 

+1...

 

Hmmm, interesting - I'll have to try it the old fashioned way.

 

well... did you try it the old fashioned way?

 

yes - Adam is correct

 

I had the same thing after injectors, I thought I was getting better milage because the onboard computer displayed 23MPG. Actual testing calculates to 15-16MPG.

 

So I guess the way for Porsche to get around the up and coming fuel economy restrictions is to install larger injectors and more aggressive ecu mapping. I'm all for it

 

When I take people for rides in my car, they are first amazed at the power, then they see the OBC display and are also amazed at fuel economy