(44) Public water system --A system supplying water to a number of connections or individuals, as defined by current rules and regulations of the Texas Commission on Environmental Quality, 30 TAC Chapter 290.
According to studies backed by the department of energy, the average car will be at its advertised MPG at 55 mph. But as the speed increases: - 3% less efficient at 60 mph. - 8% less efficient at 65 mph.
A tireâs speed rating indicates the optimal speed that the tire can safely maintain over time. The higher the speed rating, the better control and handling youâll have at higher speeds. The speed rating system was developed to help control the safe performance of tires at standardized speeds. A tireâs certified speed rating is given a letter from A to Z, ranging from 5 km/h (3mph) to above 300 km/h (186 mph). This rating system (see below) shows the top speed for which a tire is certified.