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2019 Forester Touring
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2,382 Posts
The question to ask, is can we convince EPA we do not need this feature. This is a feature everyone has implemented to meet EPA requirements.
Start/stop isn’t going away anytime soon. Many countries require it, it’s not just a North American requirement...
 

· Super Moderator
2001 Forester S, 4EAT
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7,160 Posts
That's why I don't care to buy any new vehicle from the last 5-10 years. Too much government imposed crap that we don't want or need! I am already looking into deleting all the emissions crap off my Bluetec Diesel.

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1999 Honda Accord EX 5MT
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83 Posts
Sounds similar to Active Fuel Management - or something like that, came with the 5.3L GM V8 beginning maybe 15 or so years ago. The engine would run on less than 8 cylinders under light load conditions. Many threads in forums and elsewhere how to deactivate it. Caused more trouble than it was worth. My 2002 Silverado fortunately is too old for it.

With the Subaru system - is there just one starter? I've heard of some engines with stop/start that have a secondary one
specifically for the feature. If there is just one, I'd think it would wear out prematurely.
 

· Super Moderator
2014 2.5i Limited CVT
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5,934 Posts
Auto Stop Start (A-S-S) is not and will not be going away any time soon. As emissions controls and the requirement for better fuel economy continue to be in the future for cars, SUVs and trucks, get used to it. Some of the A-S-S systems are just about un-noticeable and others are pretty awful and you can feel them - the Subaru version seems to be more like the latter (at least in my experience).

Removing emissions controls (whether gas or diesel) will most definitely put more pollution in the skies and make things worse for the next generation and the one after that and so on. And diesel is far worse than gas for the particulates - which is why so many that are available are considered "clean diesel" as you can add the urea additive and help cut out some of the emissions and particulate.

And that's what it's coming to - government regulations or not. Just like smoking in and around restaurants and bars and playgrounds and beaches and parks and other places... And we can only blame ourselves for the need of these rules and these technologies. If we (the collective we, not the royal "We") could better curb our destructive and carefree (careless?) habits, then much of the regulations would not need to exist.

No matter whether we like them or not, they're here and they're here to stay and trying to get rid of them will invalidate your warranty and cause you to not be able to register your vehicle in many jurisdictions... And while there may only be a few dozen of those jurisdictions now (at least in North America), they will continue to grow as our population continues to grow, as our planet continues to suffer climate change and other issues brought about by humanity, and more.

Auto Stop Start is something we all need to get used to - just as we all will (sooner or later) get used to hybrids and smaller engines in the quest for a better future for this spinning orb of rock, gasses and water...
 

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2019 Premium
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500 Posts
I do agree that buying a hybrid or EV is more helpful if you want to curb emissions compared to auto stop. It is an annoyance and uses more fuel in stop and go traffic but is useful in traffic light scenarios.

Engineering Explained on YouTube said the average engine break even point is about 7 seconds of “stop” to negate the startup fuel addition required.

I truly hope Subaru offers a viable PHEV or EV soon. I fear they are going to lose me to Tesla or another EV manufacturer in the future. I have no issues with asthma or the like but I am a big tree hugger. I am considering the Y with a fallback option to the R4P unless they have a hybrid Outback.
 

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2020 CBS Forester Sport
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256 Posts
I love auto stop. It's shaved several hours of wear and tear off my vehicle, and saved me a couple of gallons, and I've only gone about 2000 miles so far.

It took a few days to get the hang of it but now it's no sweat.
 

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2020 CBS Forester Sport
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256 Posts
Each tank I get about 30-45 minutes of stopped time from sitting at traffic lights. I have done 5 fill ups so that's ~ 2.5 to 4 hours of engine hours saved. (My trip B is keeping track)
 

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2020 CBS Forester Sport
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256 Posts
My 07 Outback had 300k miles and was on its factory starter, and my Crosstrek's factory battery lasted 5 years.

Ask me if I'm worried.
 

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2,285 Posts
Sounds similar to Active Fuel Management - or something like that, came with the 5.3L GM V8 beginning maybe 15 or so years ago. The engine would run on less than 8 cylinders under light load conditions. Many threads in forums and elsewhere how to deactivate it. Caused more trouble than it was worth. My 2002 Silverado fortunately is too old for it.

With the Subaru system - is there just one starter? I've heard of some engines with stop/start that have a secondary one
specifically for the feature. If there is just one, I'd think it would wear out prematurely.
....yup, GM uses AFM and Dodge calls theirs MDS (Multi Displacement System). Dodge has been using MDS on some their 5.7 Hemis for the last 15 years or so. In fact, I have the system on my 2010 Challenger R/T.

This is one of those fuel saving features that really doesn't bother me in my particular application. To be honest, it's really not noticeable at all except for a very faint change in tone of the exhaust while cruising. However, this change in tone can become a bad droning noise with the wrong aftermarket exhaust setup which is why those with the Merc Nag1 autos (like me) have to choose wisely or use one of several methods to disable the MDS system like putting the tranny into manual mode. Corsa and Borla make systems that work well with my car that create little or no drone while MDS is active.

Honestly, the MDS system only really makes a difference while on longer trips on the highway, etc. .....but even then (IIRC), it's only a 1 MPG or so gain. Don't get me wrong though, it's a welcome savings on long trips to Vegas, etc. especially since it's really imperceivable (can't feel it and can barely hear it if at all). Best of all responsiveness is seamless and instant when all 8 cylinders are called into play. IIRC, my last trip to Sin City I got 25+ MPG without even trying. ....traveling 80+ most of the way.

Subaru's Auto S/S system is a whole different story IMO / IME. In our scenario in my wife's 2020 Forester, it only comes on maybe 50-20% of the time while at a light and when it does, it only serves as a reminder that I once again forgot to shut it off before I left the house. The car shudders, the a/c fluctuates and I just find it annoying. .....especially for the marginal saving in fuel cost to us.

Either way, I'd say a Forester isn't the kind of car I would even consider if I placed such a high priority on fuel economy, pro-regulation and/or doing all I can for the environment. There are vehicles on the market that are far more responsible than Subaru in that regard. Personally, I'm not the kind of person to give a second thought to keeping the engine running while waiting for my wife in the store, etc. on a hot day. .....or starting it remotely to let it cool off before we get in.

My wife and I chose the Forester for her in '08 and again in '20 for its utility, fun (e.g. off-road capabilities, etc.) and other features. The modestly better fuel economy we have been experiencing in her '20 vs. her '08 is nice though. as I'm obviously not trying to go out of my way to spend money on fuel just for the sake of it and since this will be her commuter, the difference (while not huge) will still be enough to notice.

I hadn't heard anything about a secondary starter. AFAIK, it's just your standard setup in that regard. As for wear and tear, the engine, starter, etc. goes through far less stress simply idling than it does constantly restarting. ......but whether that will translate into starters failing more often, etc., who knows.
 

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2019 Forester Touring
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2,382 Posts
Arguing about the advancing auto start/stop as standard equipment in new vehicles is a moot point, just like arguing about fuel injection replacing carburetors...

There isn’t any turning back now...
 

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2016 Forester Premium
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10 Posts
Unless they call it something different in Canada I'm guessing you have the Premium trim?

Yeah, there is a nifty harness / module that you can buy for $100 USD from a company called Autostop Eliminator but the caveat is that it requires that you have the RAB (reverse auto braking) feature. Unfortunately, our Premiums don't.

I would let go of any hope that Subaru will do anything about it. If anything there may come a time when the option to turn it off is even taken away from consumers.

Personally, my hopes are with the aftermarket industry coming up with a plug and play solution for us.
I got tired of accidently poking the wrong nearby button to inhibit auto start/stop. A bit of fuzzy velcro just below the button allows me to find it by feel. As a feature: meh.
541282
 

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2,285 Posts
Yeah, that off button is in a bad spot. I usually have to lean over to look. I have black hook and loop tape. I thought about putting a little piece on the button itself just below the "off" text.
 
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