All variable the same: car, hill, conditions. Was wondering about the gas usage per minute, not the total to get down the hill. Would the car in neutral use the same amount of gas assuming neither car / driver touches the accelerator pedal or would it use less?
Thank You.
2006-11-29 12:44:34 · 11 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
there wouldn't be much difference in the two of them,,not enough to notice anyway ,,I'm sure one would use more than the other,,but it would be so close that you,d have to really look hard at it to tell,,good luck,i hope this help,s.
2006-11-29 12:53:41 · answer #1 · answered by dodge man 7 · 0⤊ 0⤋
Let's assume that the hill is of sufficient angle as to propel the car without outside assistance. now let's assume the hill is 100 miles long. Since the car is at idle in both cases the same amount of fuel is being provided to both engines per minute. The car that is not in gear has no restrictions and will roll along at a virtually unimpeded pace. The car that is in gear however will have the added resistance of turning the the engine. This added resistance will slow the "in gear" car down so that at the end off the 100 mile hill the car in neutral would reach the bottom first. HOWEVER remember both cars used the same amount of fuel per minute. The one in neutral Just got there a little faster!!
2006-11-29 13:23:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
NO it would be the same because in both cases the engine is not doing any work. When the car is going down a hill in drive then the engine is actually being forced to move faster by the cars transmission however the engine is not using any more gas this way because its not doing any work. So it would not make any difference. The only way that you would save gas is to drive your car down a hill with the engine off however this is very stupid because you would not have any power brakes or power steering.
2006-11-29 13:12:06 · answer #3 · answered by CAPTAIN GENIUS !! 5 · 0⤊ 0⤋
For that moment of rolling down hill, the car uses less gas, however, the wear and tear on the transmission (for rolling in neutral) and wear on the brakes (from no engine braking) makes the amount of fuel saved insignificant. Plus if you are driving through a valley, and then you attempt to re-engage your car while going back uphill again you actually use more gas while the engine and transmission catches up with the speed of the car than if you drove down the hill and back up again with the car in gear.
My buddy who made it a habit of shifting to neutral and using the brakes to slow down in lieu of downshifting had to get a brake job 3 times a year. And if you figure that the average brake job costs about $200 or so, that could buy you plenty of gas.. even at today's prices.
2006-11-29 12:55:23 · answer #4 · answered by Joe K 6 · 0⤊ 0⤋
You will save gas but you better have a manual transmission for the shift into gear at the bottom of the hill. I think you might blow out an automatic transmission. Also, how steep is the hill? If you are trying to use Georgia overdrive on Bland hill in VA you better have top grade brakes or be prepared to use the run away truck ramps.
2016-03-29 16:28:48 · answer #5 · answered by ? 4 · 0⤊ 0⤋
The car running in gear will use more gas compared to the car in neutral. This is because the engine (of the car in gear) have to match the wheel speed thus increasing the rpm. An increase in the rpm means and increase in air and fuel flow. Unlike the car in neutral, the engine is totally disengaged with the wheels so no increase in engine rpm will happen.
hope that answers your question...
2006-11-29 13:01:30 · answer #6 · answered by mapanakodamulag 2 · 0⤊ 0⤋
It would use less. When a car is in neutral it will go down to it's idling rpm, 6-1500 depending on your car. When you car is in gear, the rpm's will go up as the car gains speed. If your car has a tach, it should be very easy to see. Higher rpm's equal more gas consumption.
2006-11-29 12:49:35 · answer #7 · answered by Brendan F 2 · 0⤊ 0⤋
it's gonna have to be about a 10 mile high hill other wise it wouldn't matter if it was in drive or in neutral cause no one is giving the vehical any gas
2006-11-29 13:02:52 · answer #8 · answered by Mysterious 4 · 0⤊ 0⤋
less gas but you sacrifice a meathod of braking if your brakes fail. the tranny in gear helps slow the car especially if you downshift to a lower gear.fwd vehicles suffer because the tranny in neutral still spins gears and with no fluid flow the tranny will still burn up
2006-11-29 12:55:16 · answer #9 · answered by Anonymous · 0⤊ 0⤋
It would have to be a huge hill for it too matter.
Coach
2006-11-29 12:51:46 · answer #10 · answered by Thanks for the Yahoo Jacket 7 · 0⤊ 0⤋