[arcosine]

I am averaging slightly over 40 mpg this winter and spring in my Saturn (sc1) with narrower but taller tires, 165/80R15 vs 185/65R15. I have just switched the fronts to 205/70R15, the biggest tire that will fit without rubbing on the struts. Unfortunately the front skirts are not working, as the tires have cut the bungee cords and the right side ripped off, so there is some drag penalty. I will report the mileage after the next fill up, in about 3 to 4 weeks. Coast down tests have not been definitive yet, but it seems a bit slower. This may be due to the skirts though. At 62 mph (100 kph) on the speedometer the car is actually at 70 mph on the GPS and the 2 liter engine is at 2200 RPM. I have to make sure I don't speed. The car is a real cruiser.