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I’m skeptical that auto stop / start on automobiles is a great feature for saving fuel
Posted on 8/12/18 at 6:27 pm
Posted on 8/12/18 at 6:27 pm
For the big picture.
1- Since almost none of our redlights are timed properly it seems like moving traffic more efficiently than we do now would have more benefit than turning engines on and off.
2- My hunch is this setup is harder on engine components, particularly starter motors. If that is correct how much more fuel will we burn manufacturing more replacement parts, packaging them, and shipping them than we do now?
1- Since almost none of our redlights are timed properly it seems like moving traffic more efficiently than we do now would have more benefit than turning engines on and off.
2- My hunch is this setup is harder on engine components, particularly starter motors. If that is correct how much more fuel will we burn manufacturing more replacement parts, packaging them, and shipping them than we do now?
18
Posted on 8/12/18 at 6:28 pm to weagle99
I've wondered what it does to an engine and can't imagine it's anything good. I believe that you can turn the function off though
Posted on 8/12/18 at 6:30 pm to Powerman
On many vehicles you can, however the default is normally ‘On’ each time you start the vehicle so you have to manually hit a button to turn it off.
This post was edited on 8/12/18 at 6:45 pm
Posted on 8/12/18 at 6:32 pm to weagle99
I'm sure you've done just as much research as the engineers that designed these features, so you're probably right.
After all, everything is a conspiracy like all IT guys
After all, everything is a conspiracy like all IT guys
Posted on 8/12/18 at 6:35 pm to weagle99
Scruffy’s car does this and has lasted 12 years so far. 
Doesn’t seem to have too much wear and tear on the engine based on past service visits.
Scruffy questions the impact on gas mileage though.
Would like to see the data on that.
Doesn’t seem to have too much wear and tear on the engine based on past service visits.
Scruffy questions the impact on gas mileage though.
Would like to see the data on that.
Posted on 8/12/18 at 6:36 pm to weagle99
It might save some on fuel economy but I'm sure manufacturers will love that certain parts will wear faster. No doubt there will be added costs down the road.
Posted on 8/12/18 at 6:42 pm to Scruffy
My truck does this. It's not really noticeable most of the time except during the summer. It has sensors inside the cabin that detect if it gets a few degrees warmer and it kicks back on. Supposedly the starter is heavy duty and designed for this.
Posted on 8/12/18 at 6:48 pm to weagle99
They don't use the same starters man
Posted on 8/12/18 at 6:49 pm to weagle99
Because of CAFE they are down to measuring that crap in fractions, so yes, it does "save" fuel.
I'm glad most performance marques ignore that foolishness.
I'm glad most performance marques ignore that foolishness.
Posted on 8/12/18 at 6:49 pm to weagle99
It's not for fuel savings. It's for idle emissions.
Posted on 8/12/18 at 6:50 pm to fallguy_1978
My 18 f150 had this and it annoyed the shite out of me. Luckily you can buy an attachment to hook the truck up to your laptop and reprogram the auto stop off as default.
Only reason I still have the truck. Lol
Only reason I still have the truck. Lol
Posted on 8/12/18 at 6:50 pm to weagle99
I have a company Ford Fusion ecoboost car. I turn sport mode on before it goes into gear every time. My lifetime mileage is 31.x mpg. I run 90% interstate at 78mph. 45k miles, btw.
Edmunds says my combined mpg should be 24.5mpg or 29mpg straight hwy.
I’ll never have a personal vehicle with start/stop.
Edmunds says my combined mpg should be 24.5mpg or 29mpg straight hwy.
I’ll never have a personal vehicle with start/stop.
Posted on 8/12/18 at 6:50 pm to VetteGuy
I think in some model cars, the a/c will not blow cold air after a short amount of time. That pisses off some drivers.
Posted on 8/12/18 at 6:52 pm to Ice Cream Sammich
quote:
I’ll never have a personal vehicle with start/stop.
You won't be able to avoid it for much longer unless you intend to keep your car around forever.
Posted on 8/12/18 at 6:53 pm to CoonassatTEXAS
quote:
My 18 f150 had this and it annoyed the shite out of me. Luckily you can buy an attachment to hook the truck up to your laptop and reprogram the auto stop off as default.
I wouldn't touch a car where you couldn't disable it somehow.
Posted on 8/12/18 at 6:53 pm to member12
quote:
You won't be able to avoid it for much longer unless you intend to keep your car around forever
I think big V8 engines will have like a 3k tax on them in the near future
Posted on 8/12/18 at 6:55 pm to member12
quote:
It's not for fuel savings. It's for idle emissions.
Fair enough, but my #1 point above can apply to idle emissions also. What percentage of lights in the US are properly timed or programmed to minimize idling of vehicles? I would guess 10% give or take.
This post was edited on 8/12/18 at 6:57 pm
Posted on 8/12/18 at 6:55 pm to member12
Yes, you are correct. Still a very slight savings, but they have to have it.
Also agree that all will have it, but low-volume cars will always be easier to defeat/ignore the feature than high-volume cars.
The F150 is a PITA to defeat for example, while the BMW X5 takes a conscious effort, in a menu, to even make start/stop occur.
Also agree that all will have it, but low-volume cars will always be easier to defeat/ignore the feature than high-volume cars.
The F150 is a PITA to defeat for example, while the BMW X5 takes a conscious effort, in a menu, to even make start/stop occur.
Posted on 8/12/18 at 6:56 pm to member12
quote:
You won't be able to avoid it for much longer unless you intend to keep your car around forever.
10 years ago I wouldn’t think that they would be doing this to gas burners. I don’t see them doing this to oil burners anytime soon. When they do, I’ll go from there.
Posted on 8/12/18 at 6:57 pm to goldenbadger08
parts industry would go under if we ran all vehichles off CNG.
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