In the Corvette world, we can have our Corvettes custom tuned on a dyno by a professional to improve BOTH the mileage AND the performance.


We ALWAYS want more power, but I can live with current performance of my G35x sedan because it's just my daily driver.
BUT, the 15mpg average mileage after 36,000 is HORRIBLE and I would like to improve it.
I am considering upgrading to a G37x and would like to know the same tuning options available for a 09+ G37x sedans as well.

Thanks for any info.

 

Dyno tuning with Osiris for example, you can have multiple maps that you can change on the fly.
-performance
-stock
-economy
-valet
-antitheft

these maps will change your Air/Fuel ratio.

 

Will any of them actually improve mileage? Other than Valet?

I agree that 21-22 MPG steady state on the highway is not very efficient. My wifes bigger BMW 5 series gets 30-31 on the same trips at the same speed. almost 30% better

 

The "econcomy" mode with the osiris tune will help a little. But frankly, our cars are just gas guzzlers by nature.