Quote:
Originally Posted by GRU
If you do that it's the same as most newer vehicles shutting off the injections on decelaretion in gear. The car will slow down too fast to make a difference in fuel saving. When i had my 5speed civic i only used that (in grear) when i needed to slow down quickly.
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It really makes a difference on what type of car you have.
In the Insight, I max out at about 120 mpg in the summer with straight line driving.
But when I start cutting the injectors, I have maxed out the instant mile per gallon indicator at 150 mpg on numerous occasions. So with the right car, you can get way better mileage by coasting.
P&G is exactly the same technique used by Universities to get mileage over 1000 mpg and higher. There's no way they could get even close to that with the engine idling most of the time!
I even coast with the motorcycle engine off and get another 5% in fuel savings. But that's only because the motorcycle breaks so much wind for it's size. With a decent full body fairing, that number would go way up.
Jim.