It has the 'D' to move forward. Do the driver need to engage '1', '2' and '3' during the course of motion (as in manual transmission-if not what are they for) Does the gears' position have any impart in fuel consumption?
2006-12-16 21:51:32 · 3 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Normally when driving a car with an automatic transmission you just put it in D and drive. The car will sense what gear should be best and shift "Automatically" for you.. hence the name. The reason you still have the capability to place the shifter into 1, 2 or 3 is incase you need to use the engine to control vehicle speed while going down a steep mountain road (engine braking) or pulling a heavy load, and on slippery conditions. While driving on slippery roads up or down hill a shift at the wrong time can cause you to loose traction, so you would place the car in the gear you want and just use that until you have better traction then back into D.
The higher the gear, D is the highest, the slower the engine runs (less RPMs) and this gives more miles for the gallon. Modern cars are made to select the best gear to maximize milage and power, not neccesarily best for the situation.
Short story, just use "D" unless in the mountains and you find yourself having to stay on the brakes to slow down.. then use a lower gear.
2006-12-16 22:53:34 · answer #1 · answered by shovelkicker 5 · 1⤊ 0⤋
Yes the driver needs to go and engage different gears as the regular one would.. but if you have something like an automatic transmission then it would do it by itself. The position of the gears definitely has an impact on the fuel comsumption, when you go faster meaning on a higher gear 3,4, and so on the more you go higher the easier for the gears of the car to move it and the farther it would go, add the momentum of the car, fuel consumption is lessend and more savings are getting into the fuel economy.
2006-12-16 22:05:24 · answer #2 · answered by Paul Anthony B 1 · 0⤊ 1⤋
Automatic transmission. Operative word there is "automatic". Just put it in D and drive it, unless you need to downshift for more power in case you are pulling heavy trailer or driving in the mountains. You will get your best fuel mileage in D or OD (over drive) if equipped.
2006-12-16 23:39:30 · answer #3 · answered by oklatom 7 · 1⤊ 0⤋