GM introduces new Cadillac 2013 ATS RWD luxury sport sedan; 2 four-cylinder, one V6 gasoline engine options, with diesel in the works
Green Car Congress
JANUARY 9, 2012
Increased efficiency in the new four-cylinders was achieved partly through lower engine friction, which was reduced by up to 16% using new technologies such as a variable-displacement oil pump and, with the 2.5L, an actively controlled thermostat. Even the oil volume is optimized for minimal weight. Air-to-air intercooling system.
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