Switching to Neutral Gear at stationary saves Fuel? (4AT/CVT)

[rodrigue]

hey pple, i heard n read abt the above mentioned. is tat true?
thks 

[CustomGolf]

Bro, if you're not at a traffic junction waiting for the lights to turn green, your engine should be off so it doesn't really matter if it's at neutral or not, just that you won't be able to start your ride later if your gear is engaged. If you're at the traffic junction, how long is the wait? How much can you save?

[idiotboi89]

dont know about netural but parking the rpm idles at 800, i put D step brake idles at 600 or so. 

[Jazz]

dont know about netural but parking the rpm idles at 800, i put D step brake idles at 600 or so. 

Theoritically is the same, idle mode, free wheel therefore is 800rpm, but when engage to D, driver is rotationg with a force coz driven is stopped by our power brakes. 

[HumbleCar]

hey pple, i heard n read abt the above mentioned. is tat true?
thks 

Answer is in last week's free issue of the CarBuyerGuide.

[idiotboi89]

Theoritically is the same, idle mode, free wheel therefore is 800rpm, but when engage to D, driver is rotationg with a force coz driven is stopped by our power brakes. 

weird i thought stepping brakes they disengage or something, if not sure damage something right?

[ckyc]

I also tot of this.. perhaps can save a penny, but later gear box spoil ... then not worth liao

[rodrigue]

Answer is in last week's free issue of the CarBuyerGuide.

oh okies... thks alot for ur views.. 

[hope_n_pray]

Answer is in last week's free issue of the CarBuyerGuide.

I didn't manage to get my hands on it. So what's the answer?

[Jazz]

weird i thought stepping brakes they disengage or something, if not sure damage something right?

Obviously you do not know how an automatic gear works. 

MT is using clutch and gear, when you step the clutch, it disengage, but driver still turning.

AT is by fluids, that is why when you let go brakes, it moves. Nothing is being damage. Go read up more and you will understand. 

[Jazz]

I also tot of this.. perhaps can save a penny, but later gear box spoil ... then not worth liao

This is called penny wise, pound foolish. 

[HumbleCar]

I didn't manage to get my hands on it. So what's the answer?

Based on my understanding of Question 76 which says something about coasting in neutral vs in gear.  The logic is the same for stop vs coasting.  The real question is whether fuel supply will be cut off in order to save fuel.

The text is ".......Modern fuel injection engines cut off the fuel supply to the cylinders when you lift your foot off the accelerator pedal, BUT ONLY IF THE CAR IS IN GEAR."

(Please note words in CAP.  Hence, if the car is not in gear, the fuel supply will not be cut off.  Think quite a number of ppl (myself included) think that engaging neutral and let the car roll slowly towards the traffic red light saves fuel.  The above text says otherwise.)

[rodrigue]

Based on my understanding of Question 76 which says something about coasting in neutral vs in gear.  The logic is the same for stop vs coasting.  The real question is whether fuel supply will be cut off in order to save fuel.

The text is ".......Modern fuel injection engines cut off the fuel supply to the cylinders when you lift your foot off the accelerator pedal, BUT ONLY IF THE CAR IS IN GEAR."

(Please note words in CAP.  Hence, if the car is not in gear, the fuel supply will not be cut off.  Think quite a number of ppl (myself included) think that engaging neutral and let the car roll slowly towards the traffic red light saves fuel.  The above text says otherwise.)

haha bro.. thks for typing the whole thing out.. i bet ours must be modern fuel injection engines.. think your answer clears all my doubts.. arigato! 

[HumbleCar]

haha bro.. thks for typing the whole thing out.. i bet ours must be modern fuel injection engines.. think your answer clears all my doubts.. arigato! 

No problem, bro.  Just copy type only.  Not I draft, hehehe. 

[idiotboi89]

Obviously you do not know how an automatic gear works. 

MT is using clutch and gear, when you step the clutch, it disengage, but driver still turning.

AT is by fluids, that is why when you let go brakes, it moves. Nothing is being damage. Go read up more and you will understand. 

ahha always thought its like manual, i step brakes, auto clutch in or something. no wonder got ATF..  will go read up

[rodrigue]

this piece of info is something good to share with newbies... agree? 

[Jazz]

ahha always thought its like manual, i step brakes, auto clutch in or something. no wonder got ATF..  will go read up

Yep, no worry, everybody is learning everyday. 

[detach8]

yeap i think howstuffworks has a very good article on torque converter (the clutch equiv in AT gearboxes), read that. 

[xuan511]

ahha always thought its like manual, i step brakes, auto clutch in or something. no wonder got ATF..  will go read up

I also thought got auto clutch lol~ so its a totally diff thing 

[pizzaboy]

wat about switchin off the ignition while waitin for light to turn green?