Fuel Saving Tips
Remember that tire pressure goes down between 1/2 and 1 lb for every 10 degree drop in outside air tempurature. So for us here in the north, we lost 50 degrees in less than a week, so those tires could be down 5 pounds even if you just topped them off. Also low tires are terrible in snow.
posted by aarenz on December 20, 2010
this tip works for 91% of voting Fuelly members.