Do you get best milage at 55 or 60?

Question

Best gas milage

Answer 1

actually niether,  it all depend on your cars final drive ratio,and transmission, basically how fast your car can go at the lowest rpm's

basically, if your cruising down the highway at 3000rpm's you will use much more gas then lets say you can cruise at 1500 rpms.

so if you have a car with a high drive ratio, lets say 2.90 gears and its a 5 speed, you coul potentially get better gas mileage doing 65 rather than 50 if your rpms are very low,  this is where overdrive comes in handy, when your cruising on the freeway it has the right gear ratio to where you can cruise on the freeway on very low rpm's

so to answer your question, mileage isnt about road speed but more about engine speed.

Answer 2

Generally the lower speed will be better. However some vehicles are more "comfortable" at certain engine speeds than others. The power output of a gasoline engine is not constant over the RPM range. There's typically a range, or even a few ranges, where the engine produces power for the gear you are in where efficiency is at maximum.

The only way to know is to calculate your fuel economy at each speed.

More important is holding a steady speed. Easy on the gas, easy on the brake. Good driving habits have significant impact on fuel economy.

Answer 3

should be a small amount at 55, but not safe on modern freeways, you'll cause a road block...

For best mileage, drive with traffic, keep up with the slow lane and don't cause a blockage. you'll get good mileage following traffic, you let off the gas alot.

Only use 20% or 1/4 of your gas peddle, that's all you really need.  The biggest thing you can do is your driving style, you get twice the mileage slowing down and triple going down hill, so the sooner you let off the gas the better you will do. anticipate stop signs and lights, left off the gas as soon as you can..

Always use your od, if you don't have one, put on 2 size larger tires on the drive wheels and remember to figure a correction for mileage. you can check it against a gps to find it..

it really helps if you have a car with a mileage computer so you can watch it...

Answer 4

2006 MALIBU MAXX 3.5

32-35 mpg @ 55 mph

28-30 mpg @ 60 mph

The EPA says I should be getting 42 mpg at highway speed but their rating system is a joke. The only way this car will ever see that kind of mileage will be going downhill with a tailwind.

Answer 5

55