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Originally Posted by SPARTAN sui
Hmm, I stand corrected. I wonder why this is everywhere on the internet? I heard this first from my parents.
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In their time maybe but with a modern car with modern brakes and tires and traction control its not true anymore. You paid for all that fancy crap so use it or at least give it a chance. And coasting in neutral will result in lower mpg. When the car is engine braking the injectors don't get pulsed so no fuel is used. When its idling its using fuel.