I fueled up a couple of hours ago. I got 37.5mpg
At the last half of the tank I increased the front tires to the max sidewall which is 44psi. And for the last part of the tank I was shifting at lower rpm.
I shift out of 1st to 2nd as soon as the car starts to move. I shift out of 2nd at 20mph into 4th. I shift into 5th from 4th at 32mph. Besides those are the lowest speeds I can shift without lugging the engine and having the whole car vibrate.
I'm sure once I get a better hang of getting into 1st and doing the above strategy for the whole tank I'm sure I can pull off a 40mpg tank.
After I get new rear tires and install some aero mods and some other stuff I'm shooting for 45mpg.
See the gaslog for my recent tank, 75.3MPG. I pumped 4.69 gallons which was dead on with the SuperMID. Yesterday's drive home was 73.x so the RT was 78MPG. That would be the FE ceiling for me. I would like just to maintain the mid 70's for now.
The ceiling is mostly due to the length of the trip. One cold start every 25 miles is not bad, but not optimal either. If I had a longer commute I could prolly breach the 80's. But that would also mean spending more on gas.