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Does is use more gasoline to start and stop an engine or to leave it running if only for a short period of time?
Wiki User
∙ 14y ago
Leaving it running burns more gas. Today's electronic fuel injection systems are much more efficient and do not flood the cylinder with gas until needed.
Older motors, with carburetors, may burn excess gas at startup. That's where the idea comes from that it's better to leave it running.
Wiki User
∙ 14y ago
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