Check out www.fueleconomy.gov – it has the old and new EPA ratings for the MPG your car gets.
Here’s mine: (The oldest it gets is 1985 – mine is 1984, but 85 has the same JH 8v motor)
That’s EPA economy. Most of you who own Sciroccos know that it’s easy to get above that number.
Because of the modifications I’ve done, I can get far better MPG. I count on 35MPG reliably. I have a 10.1 gallon fuel tank, so have a range of 350 miles between fillups. I generally fill up at 300 though. I have gotten above 40 MPG before, with the best-ever MPG at 46.1 miles per gallon.
Modifications I’ve done for better economy:
- Megasquirt Electronic Fuel Injection
- Dual manifold pressure sensors for altitude correction (so it doesn’t get rich at high altitude)
- Wideband oxygen sensor (allows me to tune to run the car lean on the highway)
- .76 ratio 5th gear to replace my .89 5th gear (lets the engine run at lower revs on highway)
- low rolling resistance tires inflated to 40psi
- removed the back seat and seatbelts (I did that more because they were useless! :D)
- Low restriction air intake with a cone filter, larger throttle body, intake manifold with longer runners
This car did not come from the factory with power steering or air conditioning – but if it did – I would have removed both!