My gas mileage has been getting progressively worse this winter, and thanks to Fuelly I’ve been getting depressed because of it. I have only low gas prices to prevent me from slitting my fuel lines. I’ve bottomed out at 8.3L/100km one time!

I was curious why my gas mileage had decreased so much in the winter months since it wasn’t a car maintenance issue. I did some experiments and I’m pretty positive that turning on the heater (I usually just leave it in the middle or slightly to the heat side) decreases my gas mileage by almost 0.5 L/100km! I didn’t use my heater or ventilation (where possible) and my gas mileage is back in the high 7s again!

Now I just have to figure out why it’s not in the high 6s.

Posted by Kevin in Blogs Tags: driving, gas, research, winter