Auto Start/Stop Discussion Thread

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Old 06-27-2017, 07:49 AM
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Originally Posted by Sarlacc
When I pull into intersections I always keep my wheels straight for safety, I don't turn until I'm clear.
i do the same... just in case someone rear ends me, it doesn't push me into oncoming traffic...
Old 06-27-2017, 09:05 AM
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Originally Posted by fsttyms1
The single hardest moments for an engine/bearings are the shock at startup
Not sure on others, but the Fords with auto s/s, they say to let sit at least 15-20 minutes before draining the oil. Guess it must do something to hold oil in the block, rather than immediately draining to the pan
Old 06-27-2017, 10:54 AM
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Originally Posted by fsttyms1
The single hardest moments for an engine/bearings are the shock at startup
It takes a while for the oil to drain down into the pan after a stop. I agree for long duration stops though.

Originally Posted by Costco
I mentioned above that the Prius and other hybrids do not have a starter. They (Atkinson cycle) also operate different than most automotive combustion engines (Otto cycle). I don't know what the difference is in regards to wear and tear, but without a doubt it is higher than otherwise. Whether it is an issue or not, I don't know either.

It could be one of those things that is a new issue entirely, or maybe not at all. I am sure the manufacturers designed things with the start stop in mind, but...
There's no difference between atkinson and otto for start/stop behavior. It's basically a variable cylinder volume and valve timing mechanism.

Originally Posted by fsttyms1
Hybrids dont use the starter to get the motor spinning, They use the electric motor attached between the trans and engine to get the motor spinning before there is any combustion detonation like during a start up, which also gets the oil pump spinning and lubricating.
One can do this with an uprated starter motor too.
Old 06-27-2017, 11:44 AM
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Originally Posted by kurtatx
Correct. In Dynamic mode, Engine Start/Stop is disabled. I just can't bring myself to drive in dynamic all the time.
I can....
Old 06-27-2017, 01:01 PM
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Originally Posted by kurtatx
Correct. In Dynamic mode, Engine Start/Stop is disabled. I just can't bring myself to drive in dynamic all the time.
Originally Posted by JT4
I can....
Not sure the similarity, but I'd definitely drive my truck in Sport, if I could get it to go into 6th gear at a lower speed.
Old 06-27-2017, 01:24 PM
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Originally Posted by 00TL-P3.2
Not sure the similarity, but I'd definitely drive my truck in Sport, if I could get it to go into 6th gear at a lower speed.
Dynamic puts the trans in sport and tightens up the steering..
Old 06-27-2017, 01:43 PM
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Originally Posted by JT4
Dynamic puts the trans in sport and tightens up the steering..
On the A4, the transmission doesn't go into 7 in Dynamic
Old 06-27-2017, 01:57 PM
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Jeep doesn't go past 6th in sport mode, it's very clear that the sport mode is a definite afterthought that's not really meant to be used all that much. Super jerky and weird throttle response, transmission shift pattern is odd, etc...

S2000, on the other hand, is permanently in sport mode all the time and will go into whatever gear I want whenever I damn well please.
Old 06-27-2017, 02:49 PM
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^ That is one thing I much prefer with the F150 over the Flex. In the Flex, Sport (shift below D on the trans) it locks out 6th gear & shifts a little later & will hold a gear of throttle if you're being a bit more aggressive.
In the truck, it sharpens the throttle response & doesn't lock out any gears, but you have to be doing something like 65mph to get 6th gear..
Old 06-27-2017, 05:39 PM
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In my commute, more annoying than anything. When it stops, most of the time it will restart within 5-8s. Hate it. This is why, combined with throttle response, I use S mode most of the time,
Old 06-27-2017, 05:42 PM
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5-8 seconds? What?
Old 06-27-2017, 06:27 PM
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I asked the dealer to permanently disabled mine in my F30 335 (when BMW somehow set the default as Always On in 2013)
I manually turned mine off in my 4 series when i picked up the car from the dealer on Day 1. i think the only time i used it was i accidentally pressed the Eco button.

My issue with auto start/stop is the engine and starter wear is not worth saving $20 every year on gas...

Car manuf. does it to comply with EPA regulations and that is all there is to it.
Old 06-27-2017, 06:28 PM
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Originally Posted by kurtatx
5-8 seconds? What?
His start/stop is to put it in Park and manually turn off the car and turn it back on at the light.
The following 2 users liked this post by oonowindoo:
kurtatx (06-27-2017), Sarlacc (06-27-2017)
Old 06-27-2017, 06:35 PM
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Originally Posted by oonowindoo
His start/stop is to put it in Park and manually turn off the car and turn it back on at the light.
Who else but Saintor?
Old 06-27-2017, 06:36 PM
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Originally Posted by kurtatx
5-8 seconds? What?
What, WHAT?

What part didn't you get in "When it stops, most of the time it will restart within 5-8s."
Old 06-27-2017, 06:38 PM
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Originally Posted by Saintor
What, WHAT?

What part didn't you get in "When it stops, most of the time it will restart within 5-8s."
The part where we're talking about the response time it takes to restart the vehicle, you imbecile.
Old 06-27-2017, 06:41 PM
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Originally Posted by kurtatx
The part where we're talking about the response time it takes to restart the vehicle, you imbecile.

I wrote, throttle response, as another reason to use S mode, totally different from the auto Start/Stop.

Easy on drugs, please.
Old 06-27-2017, 07:26 PM
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Originally Posted by JT4
Dynamic puts the trans in sport and tightens up the steering..
with the x3 you can customize settings. So, default sport mode is stiffer suspension and more aggressive shifting. But I set it up so when I push the button for sport I just get the stiffer suspension. If I want the shifting, too, then I just flip the shifter to the left. I actually like how they implemented that.
Old 06-27-2017, 07:28 PM
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Originally Posted by SamDoe1
Jeep doesn't go past 6th in sport mode, it's very clear that the sport mode is a definite afterthought that's not really meant to be used all that much. Super jerky and weird throttle response, transmission shift pattern is odd, etc...

S2000, on the other hand, is permanently in sport mode all the time and will go into whatever gear I want whenever I damn well please.
do some research because my understanding is "sport" mode on the jeep is more for towing than actual sport driving. So how you set the shifter is different than what you think.
Old 06-27-2017, 07:40 PM
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Originally Posted by Sarlacc
do some research because my understanding is "sport" mode on the jeep is more for towing than actual sport driving. So how you set the shifter is different than what you think.
Then perhaps they should have called it tow mode rather than sports mode? :idea:
Old 06-28-2017, 09:27 AM
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Originally Posted by Saintor
In my commute, more annoying than anything. When it stops, most of the time it will restart within 5-8s. Hate it. This is why, combined with throttle response, I use S mode most of the time,
I think your flawless automobile is broken if that's the case. It should only turn back on if it needs the engine for something. Either that or you're only stopped for 5-8s.

Originally Posted by oonowindoo
I asked the dealer to permanently disabled mine in my F30 335 (when BMW somehow set the default as Always On in 2013)
I manually turned mine off in my 4 series when i picked up the car from the dealer on Day 1. i think the only time i used it was i accidentally pressed the Eco button.

My issue with auto start/stop is the engine and starter wear is not worth saving $20 every year on gas...

Car manuf. does it to comply with EPA regulations and that is all there is to it.
Mine has a lifetime bumper to bumper warranty so IDGAF about the starter or engine failing at this point lol.

My guess is that this has been tested quite extensively before putting it into mainstream cars. I'd definitely buy that BMW doesn't care beyond the warranty period but other makes like Honda and such definitely do. If all those cars started to eat engines and starters as a result would really tarnish their rep and would likely result in a class action. Either way, the testing that goes into a lot of these things is insane and I wouldn't worry about it.

Originally Posted by Sarlacc
do some research because my understanding is "sport" mode on the jeep is more for towing than actual sport driving. So how you set the shifter is different than what you think.
Huh? I think you're talking about the range select thing on the shift knob? Yeah that's not at all what most people think it is, all it does is set the max gear the trans can be in. I never use it because it's pretty worthless unless off road to aid with hill descent. The sport mode on the knob is a different story though, it changes the AWD to rear bias, makes the throttle super touchy, and holds gears far too long. It definitely works, just not well but that shouldn't really come as a surprise.
Old 06-28-2017, 10:08 AM
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Originally Posted by SamDoe1
Huh? I think you're talking about the range select thing on the shift knob? Yeah that's not at all what most people think it is, all it does is set the max gear the trans can be in. I never use it because it's pretty worthless unless off road to aid with hill descent. The sport mode on the knob is a different story though, it changes the AWD to rear bias, makes the throttle super touchy, and holds gears far too long. It definitely works, just not well but that shouldn't really come as a surprise.
No, mine was only FWD so I didn't have any of that stuff.

But if I remember reading the forums correctly because I always thought the sport shift sucked, that when you move the shifter to the left and select gears, you're basically telling the jeep what range of gears you want it to use, as opposed to "driving auto-manually" So like if you blip it to 5...the jeep won't shift higher than 5th gear, and it was supposed to be used in conjunction with towing.

This was all when I had first got ours, so it was still 2014 and everything was still new.
Old 06-28-2017, 10:14 AM
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Originally Posted by Sarlacc
No, mine was only FWD so I didn't have any of that stuff.

But if I remember reading the forums correctly because I always thought the sport shift sucked, that when you move the shifter to the left and select gears, you're basically telling the jeep what range of gears you want it to use, as opposed to "driving auto-manually" So like if you blip it to 5...the jeep won't shift higher than 5th gear, and it was supposed to be used in conjunction with towing.

This was all when I had first got ours, so it was still 2014 and everything was still new.
Yup, that's exactly what it does but for mine, it's mostly for off road use to make sure it doesn't go past a given gear when going downhill in order to maintain speed with engine braking. For that, it's quite useful. For everything else, it's pointless.

My dial looks like this, if you had FWD then you didn't have this dial:
Old 06-28-2017, 11:14 AM
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Originally Posted by Sarlacc
with the x3 you can customize settings. So, default sport mode is stiffer suspension and more aggressive shifting. But I set it up so when I push the button for sport I just get the stiffer suspension. If I want the shifting, too, then I just flip the shifter to the left. I actually like how they implemented that.
Same here, if I want I can customize the settings by putting the Drive Select in "Individual" mode. So for example I can have a softer suspension, with more aggressive steering. And like you if I want more aggressive shifting I just pull back on the shifter. I find I use this more, my wife prefers the Auto setting..
Old 06-28-2017, 11:44 AM
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Originally Posted by RDX10
That's exactly what comes to mind with these systems. I can't be saving more than a few cents with this gimmick, I'm certain the cost of starter motor replacement would outweigh the savings.



I didn't even think about that, or I mean I didn't even think they would be STUPID enough to lock the steering column too. So your telling me that the engine turns off and the steering wheel locks at intersections in some cases? What a load of bull.
And don't forget the extra battery in some cases.
Old 06-28-2017, 05:48 PM
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Smile

Originally Posted by SamDoe1
Either that or you're only stopped for 5-8s.
That is correct.

you 1
kurtatzxyzzxz 0
Old 06-30-2017, 09:52 AM
  #67  
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i turn it off in the MDX each and every time i start the car. Annoying. I told my wife when she brings it in for service to just have it permanently disabled.
Old 06-30-2017, 01:19 PM
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It does not remember the last setting? that is what happened in 2013 BMWs... annoying as fuk. They changed it to remember the last setting in in 2014.
Old 07-01-2017, 10:24 AM
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Originally Posted by oonowindoo
It does not remember the last setting? that is what happened in 2013 BMWs... annoying as fuk. They changed it to remember the last setting in in 2014.
Its like my Durango...it defaults to ECO mode on start up, which I hate. And the 2015 and newer actually have memory, so once its off, its off.

But its 2nd nature now to turn the car on and turn off the ECO, I don't even think about it anymore.
Old 07-01-2017, 02:22 PM
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Originally Posted by Sarlacc
Its like my Durango...it defaults to ECO mode on start up, which I hate. And the 2015 and newer actually have memory, so once its off, its off.

But its 2nd nature now to turn the car on and turn off the ECO, I don't even think about it anymore.
I don't know what ECO means in Durango terms but if my wife's CR-V started in ECO all the time I would be pretty disappointed.
Old 07-01-2017, 02:43 PM
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Originally Posted by kurtatx
I don't know what ECO means in Durango terms but if my wife's CR-V started in ECO all the time I would be pretty disappointed.
less agressive shifting. Makes it feel sluggish.
Old 07-05-2017, 05:34 PM
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Originally Posted by Sarlacc
less agressive shifting. Makes it feel sluggish.
That is it?

BMW's ECO mode is dangerous to public safety IMO.
Old 07-05-2017, 10:47 PM
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Originally Posted by oonowindoo
That is it?

BMW's ECO mode is dangerous to public safety IMO.
Thats it. And I know....I tried to once...never again.
Old 07-06-2017, 02:54 AM
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Originally Posted by dallison
And don't forget the extra battery in some cases.
I didn't even think about that. Yeah that too. So I remain at my original position. Start stop is a major gimmick.
Old 07-06-2017, 08:22 AM
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Originally Posted by dallison
And don't forget the extra battery in some cases.
Originally Posted by RDX10
I didn't even think about that. Yeah that too. So I remain at my original position. Start stop is a major gimmick.
Not sure about others, but mine has a quite large AGM, $$$ to replace compared to a standard battery.
Old 07-06-2017, 01:00 PM
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Originally Posted by 00TL-P3.2
Not sure about others, but mine has a quite large AGM, $$$ to replace compared to a standard battery.
Would you beleive me if I told you the 2007+ X5 has a monsterous battery (literally like double the size of a standard one) and in order to change the battery, you have to go to the dealer in order to reprogram the new battery?!?! Holy crap! So a battery change is like a $500 cost. Hell no.
Old 07-06-2017, 01:27 PM
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Pass. Both of my '82 diesel Mercedes had a massive battery, but they were old HP-less but torquey diesels.
Old 07-06-2017, 09:07 PM
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Will a slight power-brake override the auto shut-off?
Old 07-07-2017, 12:01 AM
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there are many ways to over ride it... slightly releasing the brake pedal, turn the steering wheel, turn on sport mode and a few more i think. For stick, if i you leave it in first or neutral+ clutch then auto off wont engage.
Old 07-08-2017, 01:24 PM
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Had a Chevy Cruze rental the other day, wasn't my choice. But it had a particularly annoying system.

You can't disable it. At all.

The only way you can override it is by putting it in L (basically sport mode for shift logic only) then pressing up to select the highest gear you want to allow. Nobody would know that without researching it.



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