On shutting off the engine at the light, I second the opinion that it needs to be in a car that is healthy. Make sure too to have an oversized battery if the car is older and keep the posts and battery clean and the posts tight.
With a healthy battery, the most I'll shut down is the ventilation system, otherwise I just leave the key on so the blinker works and start it in neutral for quicker gear engagement.
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 RIP Maxima 1997-2012
Quote:
Originally Posted by jamesqf
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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