I'm sure that this isn't too interesting, but just worked out my first 2 tanks of fuel consumption in my MY03 WRX

25mpg using Optimax, although I'm sure this will drop through the floor once I get passed the running in 4,000 rev limit!

I was expecting something more horrific.

 

MY02 WRX I consistently got 27mpg while running in, now settled at 19-20mpg Not only the rev limit but speed and consumption tend to increase when you get used to the car.

 

..not bad

what's the size in gallons of the WRX tank?

 

When I filled it up, it was on the E mark and I got 49.48 litres into it. I guess the reserve on the tank would be about 5-10 litres, so that makes a tank of about 55-60 litres.

 

Aye tank is 60 litres cap.