I drive down several large hills on a daily basis and just recently i decided to try coasting in neutral. Its fairly easy as I drive a standard so when it comes time to go back into gear i just rev the engine to where the rpm should be and shift back into gear. I got a 4mpg gain which is a 20% increase for my vehicle. Stop signs and such i do the same thing mainly because i have to otherwise i'll stall but 900rpm should be better then 3000
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