![]() ![]() Temperatures during severe-duty intervals, such as towing, can be higher than 100☌. EPA has also proposed changes, which will extend at least to 2016, that will increase the fleet wide corporate average fuel economy (CAFE) standards step wise, year on year and would impose limits on the amount of greenhouse gas emissions.³,⁸ Typical operating temperatures in automatic transmissions during cold start-up and light-duty operation are between −20☌ and 80☌. These revised procedures are intended to provide an estimate that more accurately reflects what consumers will experience under real world driving conditions. These test procedures include testing at higher speeds, more aggressive acceleration and deceleration, and hot-weather and cold-temperature testing. ![]() EPA) fuel economy test procedures which were required beginning with the 2008 model year for vehicles sold in the US market. Examples of regulatory changes include the new United States Environmental Protection Agency’s (U.S. The world is firmly focused on reducing energy consumption and on increasingly stringent regulations on CO2 emissions.
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