The industry quotes the mpg at 56 miles per hour as being the most effiecent seed. Is this true for all cars ? or do car have a more precise optimun speed for fuel effiecy does anyone know were to find these speeds.
Also do you know any techniques to save fuel?
2006-09-15 23:05:07 · 5 answers · asked by j_emmans 6 in Cars & Transportation ➔ Commuting
it is not true for all cars. How efficient of the car depends on the gearing of the car. 2 identical cars except car A revs at 3500rpms at 56mph and the B car revs at 2500 rpms, the car revving lower would be more efficient at 56mph while car A would be more efficient at a lower speed. Since all cars have different gearing, the most efficient MPH would be when the car is at the lowest rpms without bogging or stressing the engine from inadequate power. To save fuel, the most important one is driving habit. Generally it comes down to drive slower and brake slower yield the best economy
2006-09-15 23:20:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Hi, the optimum fuel economy will be different from vehicle to vehicle, it has several factors but without being too technical the overall gear ratio of the car ( used to be called overdrive) its top gear now but higher gearing helps, but factors like tyres and pressures, the narrower the tyre has less rolling resistance as does a properly inflated one,and also the design, thermal efficiency (get your engine up to temperature) volumetric efficiency ( the speed in rpm that the engine becomes efficient) usually about 2000- 2500 rpm weight in the vehicle (less is better) so go on a diet ha! and roof luggage/rack only when needed, as wind resistance is important, and of course the obvious....be gentle with the accelerator..good luck.
2006-09-15 23:20:38 · answer #2 · answered by Stuart B 1 · 0⤊ 0⤋
Read the road ahead, and drive accordingly - don't carry a load of crap you don't need in the car, don't use full-throttle, keep your tyre-pressures up, ensure your brakes aren't binding if the car is only used infrequently.
2006-09-15 23:12:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There is no optimum speed. Drive and imagine a glass of water on the bonnet......don't accelerate or brake hard.
2006-09-15 23:11:58 · answer #4 · answered by your pete 4 · 0⤊ 0⤋
best way to save is to avoid rapid acceleration and heavy braking
2006-09-15 23:07:32 · answer #5 · answered by torbrexbones 4 · 0⤊ 0⤋