Auto StartStop

[Starship Enterprise]

I get in my car, push start button, click up on steering wheel twice to go in Custom Profile Drive mode, foot on brake, release emergency brake, push down on Billetworkz release collar, put it in reverse…..and by that time I forgot where I was going.

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[AZ_Ryan]

Get a 2024. Problem solved. Lol

 

[DarkMatterGrey]

It’s supposed to save 1 mpg on the EPA test. Here’s my Monroney sticker for comparison. Mine doesn’t have it (2024 Job 1 car) so I had to pay $1000 gas guzzler tax. DH doesn’t have it so there’s an even stiffer gas guzzler tax on that, maybe because of the different gear ratios. EPA is trying to do away with it.

 

[AZ_Ryan]

It’s supposed to save 1 mpg on the EPA test. Here’s my Monroney sticker for comparison. Mine doesn’t have it (2024 Job 1 car) so I had to pay $1000 gas guzzler tax. DH doesn’t have it so there’s an even stiffer gas guzzler tax on that, maybe because of the different gear ratios. EPA is trying to do away with it.

Mine didn't get the gas guzzler charge and it doesn't have ASS. Must depend on the state?

 

[DarkMatterGrey]

Mine didn't get the gas guzzler charge and it doesn't have ASS. Must depend on the state?

No the gas guzzler tax is federal. Mine’s an AZ car, it’s on the Monroney (upper left corner).

 

[AZ_Ryan]

No the gas guzzler tax is federal. Mine’s an AZ car, it’s on the Monroney (upper left corner).

Mine too. Gas Guzzler tax "no charge".

 

[DarkMatterGrey]

Mine too. Gas Guzzler tax "no charge".

You have the automatic, 1 mpg better. I wasn’t looking at autos when I bought mine.

 

[MAT1955]

Dealer disabled mine and it has never come back on. Start/Stop is very harmful to vehicles (many reasons already mentioned) one really bad on engine like. Unused gas gets dumped into cylinders and dilutes the engine oil reducing its effectiveness over time. Disable the stupid program a.s.a.p.

 

[GrabThatBlue]

You don't have to be a mechanic to know it's not good. Had a discussion with somebody earlier.

He says, the car is built to work with start stop, so the car can handle it. Ofcoursr the car can handle it, but it is better without it.

It's never good to have an engine and all other parts that come with it shut off and on all the time. No need to be a rocket scientist to know this.

 

[Gregs24]

Amusing how so many people just 'know' stop start is bad without actual proper data or evidence.

Yes, stop start on an old engine from the 1980's without any modifications would be bad, but guess what, modern engines are designed to work with stop start.

They have coatings on bearings, different oils, better tolerances and even different designs. Many stop start setups now use an Integrated starter generator (ISG) rather than starter motor, ring gear, alternator etc so there are LESS moving parts. Even if they do use a starter motor it is designed to work in a stop start system with many more stops and starts (so you end up with a better starter motor)

Also just think for a minute. Hybrids such as the Toyota Prius start and stop all the time and they run for hundreds of thousands of miles without any problems at all. ALL PHEV, FHEV cars are stop start by default (and there are millions on the road) and the evidence for fuel savings is backed up by evidence.

People may not like stop start (although the US is more extreme than most countries) but saying it is bad doesn't make it so.

 

[Zig]

Amusing how so many people just 'know' stop start is bad without actual proper data or evidence.

Yes, stop start on an old engine from the 1980's without any modifications would be bad, but guess what, modern engines are designed to work with stop start.

They have coatings on bearings, different oils, better tolerances and even different designs. Many stop start setups now use an Integrated starter generator (ISG) rather than starter motor, ring gear, alternator etc so there are LESS moving parts. Even if they do use a starter motor it is designed to work in a stop start system with many more stops and starts (so you end up with a better starter motor)

Also just think for a minute. Hybrids such as the Toyota Prius start and stop all the time and they run for hundreds of thousands of miles without any problems at all. ALL PHEV, FHEV cars are stop start by default (and there are millions on the road) and the evidence for fuel savings is backed up by evidence.

People may not like stop start (although the US is more extreme than most countries) but saying it is bad doesn't make it so.

Why do they force power off power on on us? Same result as pushing the ignition button, seems training doesn’t work as well or is it simply an updated selt belt interlock mindset?

 

[Zig]

. ALL PHEV, FHEV cars are stop start by default

false, the electronics are not disabled during sleep periods. Go ahead try actually turning it off using the power button not the rest function. Seems like a very complicated system for an ‘estimated’ 1 mpg increase.

 

[Cz_Ziemniak]

The biggest downside to stop/start is premature wear to the timing chain.

Timing chains rely on oil to keep all the links lubricated and from having the pins grind up against the links. Every time you stop the car, the links lose some of that oil and you get an absolutely microscopic and immesurable amount of wear. Do this ten or fifteen times a day, 5 days a week, half a decade, and you get a few fractions of a millimeter of slop in a single link.

Multiply that fraction of a millimeter across a few feet of chain, a couple dozen or so links, and now your timing is off.

This is the single biggest issue with stop start, in my opinion. I've seen it cause premature damage to motors at 1xx,xxx miles. Its not a problem with shorter chains, but on a longer set like on Audi's or the Coyote, its 100% a consideration in my mind.

 

[Alex381]

Amusing how so many people just 'know' stop start is bad without actual proper data or evidence.

Yes, stop start on an old engine from the 1980's without any modifications would be bad, but guess what, modern engines are designed to work with stop start.

They have coatings on bearings, different oils, better tolerances and even different designs. Many stop start setups now use an Integrated starter generator (ISG) rather than starter motor, ring gear, alternator etc so there are LESS moving parts. Even if they do use a starter motor it is designed to work in a stop start system with many more stops and starts (so you end up with a better starter motor)

Also just think for a minute. Hybrids such as the Toyota Prius start and stop all the time and they run for hundreds of thousands of miles without any problems at all. ALL PHEV, FHEV cars are stop start by default (and there are millions on the road) and the evidence for fuel savings is backed up by evidence.

People may not like stop start (although the US is more extreme than most countries) but saying it is bad doesn't make it so.

Yep. Now add on disabling that crap and the engine will last even longer still while benefiting from all the enhancements needed to keep it from breaking things. The only component that will absolutely fail earlier from ASS is the battery.

 

[Zig]

Yep. Now add on disabling that crap and the engine will last even longer still while benefiting from all the enhancements needed to keep it from breaking things. The only component that will absolutely fail earlier from ASS is the battery.

But shouldn’t always stay started keep the battery charged?

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