The other day, I was on a short road-trip in my 2007 A3 2.0t. My route was mostly on a very level, flat ground and while staring at my trip computer and realtime MPG and I started to wonder...

What is the optimal speed and/or RPM to achieve highest MPG in this car?

Has anyone ever figured this out?

I ended up my trip averaging about 70 mph and 32.5 MPG. I thought that was interesting since it is well above the published specs for the car. Does anyone have any thoughts or experiences they would like to share?

 

probably around 1000 rpm in 6th gear. This has a close ratio 6 spd transmission, with the 6th speed geared for max mph to coincide with max hp. There is no overdrive on this car.

 

Rory,
I have experience the same thing that you have i currently drive 50 miles one way to work and have also found thaat if I set the cruise at 70 I will get between 30 and 32 mpg, anything higher or lower and I will get between 26 and 29. My average since feburary when I purchased the car has been about 27.5 mpg. A lot of my days are in the 80+ range.

Aaron

 

i'd say put it in 6th gear and keep the RPM's as low as possible -- that'll get you the best mpg.