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.
1 The first two letters or numbers identify the tireâs manufacturer and plant code. 2  Prior to the year 2000, the last 3 digits of a DOT number represented the week (2 digits) and the year (1 digit) of production. 3  So if the last three digits are 439, the tire was produced in the 43rd week of 1999.