[chillboy]

I've had my car tuned leaner in the lower rpm range and I'm quite pleased to say I got 300 miles from 1 tank of gas, almost all highway driving. I have a turbo and big injectors and running a wideband O2 with TECIII engine management. At cruise in 6th I'm seeing an A/F of 15-15.5.

Is our tank 13 gallons?
Wondering what a stock one (and modded) should get in real world driving?

Thanks for your replies.

 

[Y2K SE]

13.2 gallons.

 

[i68k]

sounds really good, mostly highway i get over 300, maybe like 320. so you sound like you have a really good tune, i dont want to know your mpg during city/spirited driving, lol. im not sure what your afr is supposed to be.

 

[chillboy]

afr should be 14.7 It's 14.5-16 under 2500rpms, once it's warmed up. Having an AF gauge is like a mileage indicator that keeps my self control with the go pedal. I've gotten as little as 150 miles with a good amount of spirited high boost running. 25mpg is making me very happy