Originally posted by: thecoolnessrune
no, because if you are on the brake, the transmission should have disengaged to neutral anyways.
Originally posted by: thecoolnessrune
no, because if you are on the brake, the transmission should have disengaged to neutral anyways.
Originally posted by: paulney
Don't you waste more gas by starting the engine after turning it off than by letting it run at idle at a traffic stop?
Originally posted by: LTC8K6
Why wouldn't the engine computer cut off the fuel if you downshift the auto? It should do so, shouldn't it? If so, that would be the way to save gas when slowing down, anyway.
Originally posted by: Canai
I usually drop my car into neutral after hard brakes so I don't warp my rotors, but I think that's about it.
Originally posted by: Eli
Originally posted by: LTC8K6
Why wouldn't the engine computer cut off the fuel if you downshift the auto? It should do so, shouldn't it? If so, that would be the way to save gas when slowing down, anyway.
That isn't what he asked, though.
It's been my experience that shifting into neutral while stopped causes the engines RPM to go up, not down. Which makes sense, considering it's taking the drivetrain load away from the engine.
Since this is the case, I believe the engine will use more fuel while in neutral. But it is most likely going to be insignificant, both because RPM isn't the only factor in fuel economy and because most stop lights aren't 10 minutes long.
It might be a good idea to do it to save wear on your transmission fluid, though, especially f you live in a hot climate.
Originally posted by: JulesMaximus
Originally posted by: Canai
I usually drop my car into neutral after hard brakes so I don't warp my rotors, but I think that's about it.
WTF?
Originally posted by: JulesMaximus
Originally posted by: Canai
I usually drop my car into neutral after hard brakes so I don't warp my rotors, but I think that's about it.
WTF?
Originally posted by: biggestmuff
Originally posted by: JulesMaximus
Originally posted by: Canai
I usually drop my car into neutral after hard brakes so I don't warp my rotors, but I think that's about it.
WTF?
No kidding, huh?
Originally posted by: chuckywang
Originally posted by: biggestmuff
Originally posted by: JulesMaximus
Originally posted by: Canai
I usually drop my car into neutral after hard brakes so I don't warp my rotors, but I think that's about it.
WTF?
No kidding, huh?
Your brakes have nothing to do with your drivetrain.
And what if he needs to use his brakes to keep his car from rolling?Originally posted by: tidehigh
cmon guys...
brake rotors get hot. hot metal warps. if he heats his brake rotors a ton in a bigtime stop. he puts it in neutral so he doesnt have to keep the brake pressed upon the rotor in one spot for the amount of time that he's sitting idle anyway.
still dont get it? i dont care
Originally posted by: SampSon
And what if he needs to use his brakes to keep his car from rolling?Originally posted by: tidehigh
cmon guys...
brake rotors get hot. hot metal warps. if he heats his brake rotors a ton in a bigtime stop. he puts it in neutral so he doesnt have to keep the brake pressed upon the rotor in one spot for the amount of time that he's sitting idle anyway.
still dont get it? i dont care
Park would be a better option if he REALLY needed to cool his rotors down.
Seems like too much work and too much worrying over something that really isn't a big problem. I've braked hard countless number of times while driving and my rotors have all had long service lives. I doubt that the lack of having your brake pads applied to the rotor after a hard stop will affect the rotors enough to warrant not applying the brakes.Originally posted by: Canai
Originally posted by: SampSon
And what if he needs to use his brakes to keep his car from rolling?Originally posted by: tidehigh
cmon guys...
brake rotors get hot. hot metal warps. if he heats his brake rotors a ton in a bigtime stop. he puts it in neutral so he doesnt have to keep the brake pressed upon the rotor in one spot for the amount of time that he's sitting idle anyway.
still dont get it? i dont care
Park would be a better option if he REALLY needed to cool his rotors down.
Yes, if it is at a big incline, it goes into park. Or I just stop far enough back so that I can roll in neutral for the whole light.