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ElantraClub - For Elantra Owners and Enthusiasts _ Elantra AD/MD/UD General _ MD 40 MPG Road Trip How to

Posted by: rexerex Jul 13 2012, 10:59 AM

QUOTE (IHeartMyRedCar @ Apr 23 2012, 10:08 AM)

Does anyone have experience or true knowledge about switching back and forth between neutral and drive? I was told frequent switching between neutral and drive is hard on the transmission so I don't do it. Is this true?

It appears to be debatable. Deceleration with the transmission engaged will shut off modern electronic fuel injectors as opposed to them using fuel at idle rate in neutral, so no fuel savings if coasting in neutral. Transmission wear may be increased by doing it, but there's lots of debate about that. Plus it could even be illegal according to some people. The reasoning is if the engine stalls you will lose power steering and brakes which could be dangerous.
Very little fuel savings if any for most drivers so leave it in gear until you learn different.