4. Treadwear â The Treadwear rating (on the sidewall and the new tire sticker) is a number; the larger the number the longer the tire will last. The Treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example a tire graded 150 would wear one and a half (1.5) times as well on the government course as a tire graded 100. Actual results will vary.
Morales En1420 Exploratory Paper BIOFUELS 1. Biofuels should be used more widely than some of the fuel sources we use today. Biofuel is a natural source... Save Paper â Words: 268 â Pages: 2. Biofuel. amounts of energy.
Biofuels are not 100% safe but they are much safer than fossil fuels. If you were to spill a large quantity of biofuel into a concentrated area, it would likely kill living organisms and contaminate surround soil or water. However, the scale of the impact would be orders of magnitude smaller than with fossil fuels.vailability of Biofuels. Unlike fossil fuels, biofuels are a renewable energy source. Because they are derived from crops that can be harvested annually, or in the case of algae monthly, biofuels are theoretically unlimited. Despite this surface appearance of unlimited availability, biofuels do have restrictions.