2007-05-30 15:03:26 · 10 answers · asked by Moanika 6 in Science & Mathematics ➔ Physics
So constant speed is like 55
But can you have a constant speed of 60 or 80,without slowing down.
2007-05-30 15:06:33 · update #1
Very true, frequent changes in speed will increase gas consumption. When City Driving be sure to plan your trip ahead of time to minimize stop and go areas. When on the highway a steady pace will help your fuel economy. If you have cruise control, use it, it'll save you dollars at the pump. Good luck.
2007-05-30 15:08:59 · answer #1 · answered by legendofonestar 2 · 0⤊ 0⤋
thats is a commonly disputed question. it all depends on how much faster or how slow she will be driving. if she is driving 40mph at that same speed, vs driving 90 mph, driving faster will be more fuel efficient. if on the other hand it is a little bit faster as in, 35 mph as the slow speed, and 40 miles at the faster speed, i would recommend driving slower. the car will be running either way. if you drive fast you are burning gas but you will get there faster and would have not burned that much. if you drive slow, the speed wont burn as much gas but after a while, it is just a waste of fuel. cruise control is a valuable and fuel efficient feature. you should tell her to use that. every car does have an optimal mpg level
2016-05-17 09:03:09 · answer #2 · answered by ? 3 · 0⤊ 0⤋
going 80 mph will use alot more gas than say 55 or 60 because you are traveling at a faster speed and therefore burning more fuel;
cruise control will help keep your constant speed and you will use less gas
2007-05-30 15:12:47 · answer #3 · answered by mimi 1 · 0⤊ 0⤋
It has nothing to do with speed, it has to do with RPM. If you're driving at a constant speed it just means that you're taxing the engine less and so you'll use less gas trying to gain inertia.
2007-05-30 15:07:16 · answer #4 · answered by TM17 2 · 1⤊ 0⤋
In addition to what the first guy said, a typical gasoline engine is set to run at maximum efficiency at 45 mph (splits the difference between the typical highway speed of 55 and the typical urban speed of 35).
2007-05-30 15:07:43 · answer #5 · answered by Randy G 7 · 0⤊ 1⤋
assuming the constant speed is less than 70 mph, yes. I believe 60 mph is the most fuel efficient speed.
2007-05-30 15:07:57 · answer #6 · answered by Esbjorn 3 · 0⤊ 1⤋
Yes. The reason is that it requires more energy to accelerate because you must build momentum and overcome inertia.
2007-05-30 15:09:23 · answer #7 · answered by captainspecial8 2 · 0⤊ 0⤋
using cruise control uses more gas that is just a myth... Nothing really can save gas only regular maintance of your vechicle and checking air pressure with your tires with help...
2007-05-30 15:07:43 · answer #8 · answered by broken hearted 2 · 0⤊ 1⤋
yep..a no brainer...braking causes loss of momentum and acceleration regains it at a costs of spewing more gas in your piston cylinders
2007-05-30 15:08:04 · answer #9 · answered by Joe M 2 · 0⤊ 0⤋
yes, no acceleration.
2007-05-30 15:05:29 · answer #10 · answered by Sarah 3 · 0⤊ 1⤋