I want to see new performance metric - Auto Stop/Start

Joined
Nov 24, 2003
Messages
3,786
Location
Middle of Iowa
It would be interesting to see 0-60 times for cars with auto start/stop. One with the system de-activated (engine idling) and one with the system activated. Sometimes I just don't like the feeling of sitting at a red light with folks on phones coming up behind me, and a dead engine. I wonder how much of a difference there is?
 
It would be interesting to see 0-60 times for cars with auto start/stop. One with the system de-activated (engine idling) and one with the system activated. Sometimes I just don't like the feeling at sitting at a red light with folks on phones coming up behind me, and a dead engine. I wonder how much of a difference there is?
The one or two seconds in your imagined situation in all likelihood won't be enough to avoid an accident. Tell me, at a red light how do you look in your rear view mirror and straight ahead to know when to proceed through the intersection at the same time? Personally I am hoping for this situation so I can get a new King Ranch Edition Truck. My neck hurts already.

Have you driven a vehicle with stop/ start?
 
The one or two seconds in your imagined situation in all likelihood won't be enough to avoid an accident. Tell me, at a red light how do you look in your rear view mirror and straight ahead to know when to proceed through the intersection at the same time? Personally I am hoping for this situation so I can get a new King Ranch Edition Truck. My neck hurts already.

Have you driven a vehicle with stop/ start?

I can see the color of the light in my peripheral vision.

You may be correct, but years of riding motorcycles always has me watching my 6 when sitting at a light.

My Buick has Auto Start/Stop. I have it tuned so I can turn it off if I like...which I do often.

Yes, I realize I could run the test myself for this model, but I hate the ideal of going from a dead engine to full throttle on my personal car.
 
Well of course there's going to be some lag. You could probably compensate for it by looking at the light for the cross traffic and when it turns yellow you can lift off the brake so the engine starts and then be ready to go when the light turns green. If you put your left foot on the brake and give it a little gas with the right, does that start up the engine?
 
I doubt there would be a discernable difference. The goal of Auto Start/Stop is to have the engine cranked and going by the time you can fully depress the brake and press the accelerator pedal.

From my sample size of one Kia rental, it didn't seem to hinder the car, at least enough for me to notice
 
I can see the color of the light in my peripheral vision.

You may be correct, but years of riding motorcycles always has me watching my 6 when sitting at a light.

My Buick has Auto Start/Stop. I have it tuned so I can turn it off if I like...which I do often.

Yes, I realize I could run the test myself for this model, but I hate the ideal of going from a dead engine to full throttle on my personal car.
You could run the test your self. You car shouldn't blow up.
 
I can't get to my gas fast enough that it isn't started and ready in my Atlas. It's very quick but sure, there would likely be a v. slight difference b/c my perception is likely skewed.
 
Don't automatic transmissions slam into gear as the engines start / transmission pump pressure builds and Joe Average steps on the gas?
When Ford stupidly programmed the AW55-50 series transmissions in Volvos with something they called, "Stop Neutral", the effect was so. Dealers summarily eliminated it.

Has any long term transmission wear-out data been collected on vehicles equipped with stop/start?

NOTE @1:25 in the video: Don't try this at home!
 
Last edited:
First, it doesn't matter if you're going to time 0-60 or 1/4 mile or whatever or just drive away from a stop. It takes 0.x seconds for auto-start to restart the engine and be ready to roll. Throttle opening at that point has nothing to do with it. Second, in normal person daily driving I've noticed the time to restart and be ready to roll is pretty much identical to the time for me to finish letting up the brake pedal and press the gas pedal. So IOW the autostart has zero influence on my driving, just on maybe saving gasoline and money for me. And saving the planet.
 
I can't get to my gas fast enough that it isn't started and ready in my Atlas. It's very quick but sure, there would likely be a v. slight difference b/c my perception is likely skewed.
Some manufacturers make smoother start/ stop than others, it's my experiences the delay for start up is almost non-existent in many different makes I have driven.
 
First, it doesn't matter if you're going to time 0-60 or 1/4 mile or whatever or just drive away from a stop. It takes 0.x seconds for auto-start to restart the engine and be ready to roll. Throttle opening at that point has nothing to do with it. Second, in normal person daily driving I've noticed the time to restart and be ready to roll is pretty much identical to the time for me to finish letting up the brake pedal and press the gas pedal. So IOW the autostart has zero influence on my driving, just on maybe saving gasoline and money for me. And saving the planet.
Same - as I lift off the brake it's started when I hit the gas. It's really seemless.
 
Don't automatic transmissions slam into gear as the engines start / transmission pump pressure builds and Joe Average steps on the gas?
When Ford stupidly programmed the AW55-50 series transmissions in Volvos with something they called, "Stop Neutral", the effect was so. Dealers summarily eliminated it.

Has any long term transmission wear-out data been collected on vehicles equipped with stop/start?
No they don't slam in to gear. Have you driven several?
 
Don't automatic transmissions slam into gear as the engines start / transmission pump pressure builds and Joe Average steps on the gas?
When Ford stupidly programmed the AW55-50 series transmissions in Volvos with something they called, "Stop Neutral", the effect was so. Dealers summarily eliminated it.

Has any long term transmission wear-out data been collected on vehicles equipped with stop/start?
No - the system here has to be a different as it's not "slamming" anything - I'd like to think that at 10 years or more now with these systems that as much as folks want them to wear everything out, they don't or you'd hear about it.
 
No - the system here has to be a different as it's not "slamming" anything - I'd like to think that at 10 years or more now with these systems that as much as folks want them to wear everything out, they don't or you'd hear about it.
Yes- I would agree there are still trying to find fault with a system that doesn't really have one.
 
I've never driven one and I am not at all looking to harpoon the concept / system.

I'm just asking.

Forgive me for doubting the industry which gave us the Vega, most any vehicle from the '70's and $90,000 pick-up trucks.

And please discount my experiences with the "Stop Neutral" mentioned above....which did slam like a porn movie.
 
I've never driven one and I am not at all looking to harpoon the concept / system.

I'm just asking.

Forgive me for doubting the industry which gave us the Vega, most any vehicle from the '70's and $90,000 pick-up trucks.

And please discount my experiences with the "Stop Neutral" mentioned above....which did slam like a porn movie.
What dinosaur do you drive??
 
Back
Top