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A comment on Fewer than 3% of cars sold in the U.S. have manual transmissions. Parent comment

Re:Fewer than 3% of cars sold in the U.S. have manual transm... by toomuchtodo on Thursday November 17, 2016 @02:51AM (#12975316)
Uses engine compression to bleed off kinetic energy (no additional fuel use). Not more environmentally friendly, but saves on brake wear.

Semis utilize this mode of braking heavily: https://en.wikipedia.org/wiki/Compression_release_engine_bra...

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Re:Fewer than 3% of cars sold in the U.S. have manual transm... by geon on Thursday November 17, 2016 @03:02AM (#12975380)
Actually, it uses a tiny bit less fuel, since it doesn't have to idle.
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