cruising in neutral. share your opinions.

[oldboy]

my friend once told me about saving gas while cruising in neutral in his M/T civic vti.
i'm quite skeptical about this, co'z i have very little knowledge about M/T.
i don't know if this can damage the car's engine or it will just lead to higher FC.
i'm now driving a 2000 honda civic lxi M/T for a month now from a ten year A/T driving experience with a 98corolla gli.

does this driving habit really saves gas?

[eojlin]

I think your friend is right. Your car engine's running RPM is at its lowest while in Neutral - naka-idle kasi, so less fuel pumped.
Yan yung ginagawa madalas ng mga PUV drivers natin to save on fuel.
I do this too, sometimes (glide lang: hehe, guilty).
Pero it's not safe, especially in emergencies when you need to urgently step on your brakes or on downhill roads.

[blue_gambit]

Yes its true, one of the most effective techniques used in various economy challenges conducted here ... It wont damage your engine since there's no strain or load when in neutral

[tatata]

ayan din ang alam ko. pag M/T ok lng.. pero pag A/T ok lng ba na biglang mag neutral?

[ace_ram]

helps cool down the engine too

[ghosthunter]

my friend once told me about saving gas while cruising in neutral in his M/T civic vti.
i'm quite skeptical about this, co'z i have very little knowledge about M/T.
i don't know if this can damage the car's engine or it will just lead to higher FC.
i'm now driving a 2000 honda civic lxi M/T for a month now from a ten year A/T driving experience with a 98corolla gli.

does this driving habit really saves gas?

Cruising in neutral or coasting can save fuel by minimizing the amount of fuel the car uses as it moves. I used to do this when I drove a M/T car, accelerate to a certain speed then coast the car. Great when traffic is low.

Some even go to the extreme by shutting down the engine.

[skyglider]

ok lang naman... wag lang pag sobrang downhill. mahirap i-stop ang auto pag sumobra ng acceleration.

dati sinubukan ko yun muntik na kong malaglag sa ilog sa bandang alfonso, cavite. buti na lang na-control pa...

[oj88]

Depending on the car and situation, you may even save more fuel if you keep it in gear while coasting.

When engine management detects that you took your foot off the gas pedal and you're going at a fast enough speed, the injectors stop feeding fuel into the cylinders, allowing the car's momentum to keep the engine at above idle. Once it goes down to a certain RPM, the injectors fire right back up to keep the engine from stalling. This is done so smoothly and efficiently that you'll probably won't feel the transition. You'll likely need to have a trip computer or digital gauge plugged into the OBDII port to show you how much fuel is being injected at any point in time.

[mreyes]

pag m/t, pwede ito.

pag a/t, alam ko hindi ito pwede...mabilis ka tapos lalagay mo from "D" to "N"? correct me sirs if im wrong.

[oj88]

pag m/t, pwede ito.

pag a/t, alam ko hindi ito pwede...mabilis ka tapos lalagay mo from "D" to "N"? correct me sirs if im wrong.

Going from D to N while coasting won't damage your A/T. But putting it back to D from N while still moving at a certain speed could.

[vinj]

Depending on the car and situation, you may even save more fuel if you keep it in gear while coasting.

When engine management detects that you took your foot off the gas pedal and you're going at a fast enough speed, the injectors stop feeding fuel into the cylinders, allowing the car's momentum to keep the engine at above idle. Once it goes down to a certain RPM, the injectors fire right back up to keep the engine from stalling. This is done so smoothly and efficiently that you'll probably won't feel the transition. You'll likely need to have a trip computer or digital gauge plugged into the OBDII port to show you how much fuel is being injected at any point in time.

I also agree with this; coasting while in gear (i.e. when slowing down, going downhill). I noticed this with my LPG where i hear the injector feed click on and off. It clicks off (and still doesnt shift back to gas mode) when i'm decelerating or coasting with my car in gear and not stepping on the gas. Once i shift to neutral or the car hits a certain, low RPM, the injector feed clicks on again. When i shifted to this practice (keeping the car in gear and not at neutral when coasting), my FC actually improved by an additional .5 to 1km/L on the Altis.

Another is with the vacuum gauge GH posted before, (borrowed the pic GH posted), the point with high manifold vacuum pressure is when the car is decelerating and not at idle.



Coasting at neutral, especially if you're going downhill isn't safe. There's lower brake assist, no engine braking, and the vehicle balance is... not balanced (its like steering a grocery cart down a ramp). Plus if there's an emergency and you have to accelerate, it takes more time to power out as you have to shift back into gear.

[ans_lim168]

my friend once told me about saving gas while cruising in neutral in his M/T civic vti.
i'm quite skeptical about this, co'z i have very little knowledge about M/T.
i don't know if this can damage the car's engine or it will just lead to higher FC.
i'm now driving a 2000 honda civic lxi M/T for a month now from a ten year A/T driving experience with a 98corolla gli.

does this driving habit really saves gas?

It saves you a little but it's not safe, like what the others posted it depends on the condition on the road.

[Nuebe Siete]

i always do this.especially sa carpark sa mga mall pag pababa nako.pero para lang hindi mangawit paa ko sa clutch.

[scharnhorst]

as far as I know, this is not recommended, especially in A/T cars.

nagcocoast naman yung mga A/T if you stop pressing on the gas

[oj88]

i always do this.especially sa carpark sa mga mall pag pababa nako.pero para lang hindi mangawit paa ko sa clutch.

That's kind of a moot point. Instead, put it in low gear and release the clutch pedal. Same thing... but safer.

[CVT]

Engaging your angel gear (neutral) puts you nearer to the doors of hell....

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