I filled up tonite, finally......
2 tank avg (before motorvac)..17.43L/100km or 13.57mpg (us)
1 tank (after motorvac)..........13.61L/100km or 17.38mpg (us)
Difference is -3.82L/100km or +3.81mpg after motorvac cleaning.
Most of you know with my rim/tire combo my spedo is off. The 2 tank avg was with my 14inch
stock steelies (assuming spedo was correct with them).
I've purchased a GPS, woohoo!, and have corrected my Odometer reading to my GPS reading for the last tank with 16 E0's on.
If I don't use the correction and just go by my Odo reading
Difference is -2.69/100km or +2.48mpg
as you know, you can't rely on 1 tank for fuel mileage. So time will tell.
I'm happy so far.
Oh and just incase your wondering how bad my spedo is off.
1km = 1.08km or 8km for every 100km travelled.
For those not liking the distance calculation 90kph is 97kph, almost 8% off and that miata tire size web page
says I should only be 2.8% slow from stock.
