In 312 miles of testing, the SuperTruck returned the near-10 mpg figure with a gross weight of 65,000 pounds. Some of the other statistics associated with the truck's efficiency are even more eye-opening. Consider, for example, the fuel savings of a truck that achieves 54 percent better than usual economy.
He said that the yellow dot on the tire is supposed to line up with the stem in order to help the tire be balanced correctly. Sure enought 3 tires were improperly mounted and had good size wheel weights on them. The other was properly mounted and had just one small wheel weight.
The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be.