New 3rd generation Audi TT diesel offers fuel economy of 56 mpg
Green Car Congress
MARCH 3, 2014
In both versions it unites various advanced technologies: additional indirect injection supplementing the direct injection of the FSI; the Audi valvelift system (AVS) to adjust the valve stroke on the exhaust side; and thermal management, which uses a rotary valve module and an exhaust manifold integrated into the cylinder head.
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