>light turns green
>hear an engine start

>>28561664 (OP)
Kek nu-cars keep taking Ls

>>28561664 (OP)
And your problem with this is?
Or have you read somewhere that you should hate it, so you unthinkingly go along with the herd?

>>28561828
well honestly i think the issues are overblown but once i was at a crossing and a car took like 5 seconds for the autostopstart to restart the car

>>28561830
Sounds like a shit system, or the car has been badly maintained.
I've seen non-stop-start cars that take 20 seconds of cranking and throttle pumping before the engine catches.

>>28561828
>And your problem with this is?
Stop/start systems damage engines and starter motors for insignificant if not paltry gains

>>28561664 (OP)
my dad's car has it, the first thing i do whenever i drive it is turn it off

>>28561843
>Stop/start systems damage engines and starter motors for insignificant if not paltry gains
And you get this information from where?
How does starting the engine damage it?
A stop-start system uses a starter-motor system engineered for the duty cycle it will perform - it isn't just a normal starter motor.

>>28561843
This, starting and stopping the engine is based as fuck when it's a hybrid, it's so smooth how the engine just kinda fades in when you start driving with the electric, all this stopping and cranking of the engine is not only expensive and cringe when it breaks, but it's just unrefined, totally negates and benefits of having a nice and smooth new car if the thing is shuttering at the lights.

>>28561855
And how do you think the petrol engine is started in a hybrid? Pixie dust and a magic wand?

>>28561852
I got that info from the two years of automotive electromechanics I took

>>28561849
>the first thing i do whenever i drive it is turn it off
Because 4chan told you to?

>>28561859
>he doesn't know how to start a car without a starter
That's pathetic
Just leave /o/ forever

>>28561855
>it's so smooth how the engine just kinda fades in when you start driving with the electric
No, it's rough and sounds like shit. Ive been in ubers before. Hybrids are fucking gross.

>>28561860
orly. Your college course taught you that stop-start damages engines and starter motors? What evidence did they give you that you can share here?

>>28561868
Harmonics

>>28561843
There is not really any solid evidence of this yet, The tech is still too new to tell that for sure. I don't doubt that it can potentially shorten the lifespan of an engine, but not by any significant amount.

>>28561664 (OP)
Sorry, that was me, I stalled.

>>28561863
no, i just don't like it. there's nothing wrong if you do

>>28561876
>Harmonics
Bollocks
>I can post meaningless one-word answers out of context too

It's clear that this thread is full of misinformation and misunderstanding.

Here's a technical article that gives some detail, and has links at the bottom to more articles and papers that will help you understand.
https://www.powerelectronictips.com/understanding-stop-start-automobile-engine-design-part-4-mechanical-wear-issues/

Declaration of interest. I have a 2019 V60 CC with stop-start (and Polestar tune, but that's another issue). I never bother to turn it off (unlike some of the other nanny systems) but it rarely actually operates. Why is this? you ask. Because the stop-start system in my car is smart enough to monitor all of the vehicle systems (including oil temperature, electrical load, battery charge (S-S has a separate, 45V battery), ambient temperature so it will only operate when all of these fall within allowed parameters. When it does operate the engine is running in the time taken to take my foot off the brake and move to the accelerator or, if I've put the handbrake on, as soon as I touch the throttle, and fast enough not to slow down moving off.

I have other cars that don't have it. There are many of the V60's electronic systems I don't like, so I permanently switch them off. S-S isn't an issue to me.

>>28561828
>t. start/stop cuck

>>28561828
it's a system solely implemented to improve the advertised MPG and emissions because it completely shuts off the engine during parts of the official test cycles. noone in the engineering department of [car manufacturer] tasked with designing these things does so with the goal of providing a tangible benefit to the end user

>>28561910
You're not getting spoonfed you ignorant moron
that's enough of an answer to people who understand what's going on in the engine

>>28561963
This, these car manufacturers will sacrifice reliability in order to comply emissions and sell things, their hands are unfortunately tied, they're not doing all this complicated bullshit as a favor for us, they have to, if all this EPA shit weren't in the way we could have really simple cars that aren't out of warranty nightmares.

>>28561963
They do it to help pass the emissions tests. The actual savings in fuel will be small. Because car manufacturers warranty their powertrains for 80-100,000 miles, they would not engineers a system that would increase their warranty bill (at least not deliberately). I'm not suggesting that some OEMs haven't implemented the technology badly

>>28561967
I'm not asking you to spoonfeed. I'm asking you to provide evidence. "Harmonics" is not evidence without explaining how harmonics are involved in increasing wear by stop-start.
Your answer is starting to look like the usual trollbait.

>>28561961
Sheep it is then

>>28561967
Logical fallacy in effect = appeal to authority.

>>28561981
projection it is then

>>28561664 (OP)
I rented a car with this feature while mine was in the shop. The first time it shut off the engine at a stop light, I thought, "Oh shit, I've stalled it."
What an annoying feature.

>>28561828
It exists solely for the manufacturer's benefit. Consumer just gets more possible points of failure. The price of whatever very small amount of gas you save is offset by paying for the system in the first place

>>28561828
I don’t have a problem with it, but I also find start/stop systems unnecessary.

>>28562344
We seriously need a fucking reset of the automotive industry like when the Malaise shit was getting so unbelievably cringe we threw it all out for Jap cars and scrapping alot of the regulations and 55 speed limit, when I see young people not being optimistic about new cars like I was 20 years ago, and looking old cars instead, that's how I know we're cooked, cause when I was little anything that wasn't brand new was pretty much junk, there was no advantage in reliability, emissions, fuel economy, comfort and refinement or anything driving a 90s car over a 2000s one, but now a young zoomer driving a 2000s car has the reliability of their car working and being fucking fixable over a new one.

when i worked at a dealership people brought in vehicles with auto start/stop problems enough times that i would never consider using the feature. the benefit is negligible anyway.

>>28561868
>stop-start damages engines
Receipt?

>>28561664 (OP)
Imagine how many of these newer cars are gonna be totaled out by their start start among other needs when their old, (if they even make it to old age), normies can't even be asked to by quality tires for their 18+ inch wheels, let alone suspension work, motherfuckers will throw away their whole car over a valve cover leak and some miscellaneous shit they let go.

>>28561828
you're a spiritual cuckold for even defending it

>>28562451
This, it's so easy to defend over-complicated nonsense when the cars are relatively new and you're a 36-72 month paypiggie, it's when the thing actually has some miles and aging to it does it reveal itself to be more to fix than the car is often worth, which combined with the normal car maintenance like brakes on both axles, valve cover leaks etc, tires worn away, control arms moving around because the bushings are shot, possible struts, electrical etc, you might as well throw the whole damn car away, it's fucking bullshit enough paying like 2 hours of labor+part for a starter on a 4 cylinder car, now we gotta pay way over $1000 and reset the stop start counter thing in the computer, it's a nightmare, no one should be defending this shit, especially when you're defending car companies that are working against us.

>>28561887
90% of engine wear is on startup when there's no oil on bearing surfaces.
This has been known for 80 years.

Im a wrenchlet. My new BMW has this feature when not in sport mode, should I turn it off?

>>28562656
There should be some shit in the infotainment vehicle settings where you can customize the sport mode to make it less sporty, but still not do that start stop bullshit because it's in your customized version of sport mode.

>>28561828
I don't like the way it sounds.

>>28562666
Kek it feels like shit too, imagine paying the premium for a brand new car for something that is pleasant and doesn't shake like a 20 year old Honda 4 cylinder with blown out motor mounts, and then you take off at the light and you realize you're 72 months deep on this piece of shit car that shutters to life worse than a shitbox every time you're taking off at the light.