question bout use of automatic vehicles

[jvdejesus05]

sirs/mams... pasensya na po but i would just like to ask po sana something bout automatic vehicles... un po kasing matic n honda vti ng bro-n-law ko, ung gearshift goes like this: P, R, N, D3, D2 and D... my question goes like this, if i am to drive it, klangan ba na magstart ako sa D then after some time D2 then D3 or can i just drive it n D3 agad? what's more fuel efficient to do? sorry po inosente po ako sa automatic eh... hehehe.... hope someone could enlighten me...

[ghosthunter]

sirs/mams... pasensya na po but i would just like to ask po sana something bout automatic vehicles... un po kasing matic n honda vti ng bro-n-law ko, ung gearshift goes like this: P, R, N, D3, D2 and D... my question goes like this, if i am to drive it, klangan ba na magstart ako sa D then after some time D2 then D3 or can i just drive it n D3 agad? what's more fuel efficient to do? sorry po inosente po ako sa automatic eh... hehehe.... hope someone could enlighten me...

Just put it in the highest "D" and keep it there.

[av8or5]

Just put it in the highest "D" and keep it there.

i agree... d2, d1 is what you call low gears..its suppose to be used as engine breaking. (i.e. d1 means the car will not shift at all..it will stay in the 1st gear, d2 means, it will shift ones so in short.it will stay in 1 or 2nd gear)

some people use d1 or d2 for climbing...but in my opinion its not needed unless you really need power or you like driving your car up to the red line. automatic are made to shift up or down when needed.

so in short..use lower gears for engine breaking.

[meledson]

Normally nasa "D" ka lang. Ito ang pinaka fuel efficient. No need to shift to other Ds unless really needed.

Pag "D2", first ang second gear lang ang puwedeng gamitin ng sasakyan. Good ito sa mga panikan

"D3" ay ahnggang 3rd gear lang.

[mbeige]

Essentially, if you leave it in D3, all gears are available and so the transmission will automatically select which gear is appropriate for the conditions. If you leave it in D2, you're having one less gear (if it's a 4 speed transmission, you only have 3, etc. and this goes on until D, which with the same 4 speed, you'll only have 2 this time).

D2 can be engaged when going up or down steep inclines. For choosing really low gears, D can be engaged instead but keep in mind the maximum allowed speeds for each gear so you will not over rev the engine. The owner's manual should have that info.

[claRkEnt]

You can use D1 for uphill climb, for example when going up parking ramps. Going down, you can use D2 as it gives engine breaking.

[jvdejesus05]

so meaning, keeping it in D3 (being the highest gear) will save me more fuel rather than driving it in D1 first then D2 and lastly D3?...

[_Qwerty_]

for normal driving.. just use D, that will be the most fuel efficient.

[mbeige]

so meaning, keeping it in D3 (being the highest gear) will save me more fuel rather than driving it in D1 first then D2 and lastly D3?...

Yes. The transmission is calibrated so that it shifts depending on your right foot input. If you step on it hard, it will shift late. If gentle, it will shift early. So if it shifts late, your engine speed will be higher to attain more acceleration, thus consuming more fuel. The opposite is true with gentle shifts, lower engine speeds are reached so you get better fuel economy. This is all the way from first to top gear in D3 (perhaps 3 means it only has 3 gears). I'm talking in general kasi they're pretty much similar anyway.

No point in manually shifting, unless you want to override the automatic shifting properties of the transmission. Just be sure not to over rev the engine like I mentioned. Each gear has a maximum allowed speed, and this varies per vehicle so check the owner's manual.

I would recommend D2 for hills, if it's not too steep. If it's still too steep, go for D1 instead. Automatically going for D1 might cause engine break. Key is to select it step by step if you don't know how it functions yet.

So if it's a three-speed A/T:

D3 first to third
D2 first to second
D1 first

D3 will normally shift to third, whereas D2 will not shift into third, but only to second. Likewise with D1, but only first gear is available this time.

Placing it in D3 is standard procedure, because it shifts normally. If going up parking ramps, D3 is fine but if having a hard time, either shift to D2, or stab at the accelerator pedal to trigger the downshift mechanism, so it shifts to 2nd gear instead. However, doing this may also kick the engine speed up since you are engaging maximum pedal input so the other alternative is to shift to D2 to maintain normal engine speed but force the transmission to shift to 2nd gear instead.

[G01]

so meaning, keeping it in D3 (being the highest gear) will save me more fuel rather than driving it in D1 first then D2 and lastly D3?...

Keep it in D so that all 4 gears will be in used. In D3, 4th gear will not be engaged. In D2 only the 1st and 2nd gears will be used. You did not mention in your initial post that there is D1.

[suv]

Pasingit ng question.....ano ibig sabihin ng "Engine break"

[meledson]

Pasingit ng question.....ano ibig sabihin ng "Engine break"

Gamit mo ang makina to slow down. Usually ginagamit itong technique na ito sa manual. This is not adviseable if you are traveling very fast ang you want to slow down very fast.

To save your brakes going down mountains, use engine break to help you slow down. For safety reasons, do not rely on the brakes alone.

[suv]

^
Pag sa manual yung clutch parang tinitimpla yung apak para mag break?

How about sa AT pwede yun?

[Gumusut_Amige]

^
Pag sa manual yung clutch parang tinitimpla yung apak para mag break?

How about sa AT pwede yun?

usually pag manual ginagamit ang 3rd/2nd or 1st gear for engine braking pag pababa to enhance braking capabilities. paano mag slow down ang ride mo kung clutch ang gamit?
sa AT ay nasabi na nila using D3/2/1.

[moe]

brake and break are two different things hence the confusion

[fourtheboys96]

so meaning, keeping it in D3 (being the highest gear) will save me more fuel rather than driving it in D1 first then D2 and lastly D3?...

i am a little bit wary of the last part of sentence. you dont necessarily have to shift from D4 to D3 to D2 (or D1) or vice versa when using a/t. you only move the lever as needed (downhill, uphill, etc.)

in semi-automatic i think you can shift from 1st to 4th without using the clutch.