I got 500Km on my last tank. 200 Hwy, 300 City but I babied the car. I never went above 3000RPM. Driving the same last year got me 590KM. I might try the motorvac too. My wife regularly gets 450 - 500KM all city driving. Not bad for a 10 year old automatic Contour.

99 CSVT Green/Tan # 84 of 2760 Built on Wednesday, September 30, 1998 15.376 @ 92.00 MPH Stock 75,000Km 96 Contour GL 2.5L V6 ATX 170,000Km