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2020 Subaru forester
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37 Posts
Discussion Starter · #1 ·
Last night I parked the car and left it running for 3 hours while I visited friends!!! I had no clue that the car was running of course. I always had problems with "Key less start" feature but had manage to catch it before walking away like this. Did I do any damage to the engine? It seems to be running okay today. Is there anything I need to check? Final question: Is there an easy way for this absent minded driver to know that the engine is on before stepping out of the car?
 

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2012 Forester X Auto
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2,246 Posts
@kentM

The car isn't under any stress when idling. The only damage was to your wallet for fuel cost.
Subaru's are quiet running but silent?
Get in the habit of looking at the dash - If your instruments are lit up, the car is running and the tach will show rpm's.
 

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2021 Forester Premium CVT
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112 Posts
Your oil may be a little diluted with fuel. Take her on the highway for a 20-30 minute run and all should be forgiven.
 

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2021 Subaru Forester Sport
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75 Posts
if you had the key on your person the car should've beeped at you several times when you closed the door? did you not hear those either?
 

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2020 Subaru forester
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37 Posts
Discussion Starter · #7 ·
I did not hear the beeps. I think the reason was that I was distracted while talking to my friend. I am now going to test the beeping to see if it is loud enough for me.

I just checked. It beeped 3 times. Loud and clear. Thank you.
 

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2020 Forester Sport
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77 Posts
Your car is fine. I've done this in a rest area. Fell asleep with the A/C blasting and next thing you know I wake up and several hours passed. Like @DragonSubie7 said, the only damage is the fuel you lost. Dont sweet it. I also wouldn't make a habit of it haha.
 

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2008 XT Sport 5-speed
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435 Posts
Like others have said no damage done...I used to live in Alaska, and when it got really cold (like 40-70 below zero) we wouldn't turn our cars off once they were started in the morning. So they would sit idling most of the day. Same with Police cars, many of them spend hours everyday idling.
 

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Thank you. I'll take your advice and take the car on the highway.
.....don't bother. You'll just be wasting even more fuel and time for nothing. Just use the car as you normally would.

.....still find it hard you can't tell the car is running when you step out if it though. In my wife's 2020 is pretty obvious. Also, just because it's push button start, the action of pushing the button or turning a key to shut it off should already feel pretty routine.
 

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2017 Forester XT Touring EyeSight
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540 Posts
Is auto start/stop perhaps part of the issue here? Your car has it, but was it on or off? I don't have it myself; what happens in various scenarios when you park a car that has the system? Does the engine always come alive when you shift to Park?? If you set the hand brake? Etc.
 

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2020 Forester Sport
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36 Posts
I thought the auto-start feature was standard in 2020, no? It's not really a feature for owners, but one for car makers.

Anyway, I have the same intermittent confusion with turning off the car. I try to make a point not to get out of the car until it says "Goodbye".
 

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2020 Subaru forester
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37 Posts
Discussion Starter · #17 ·
I like that approach. Don't leave the car until it says Goodbye.
My car has Push Button Ignition switch. It does not have Remote Start feature. What is an auto-start feature?
 

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@kentM I think you mean "auto stop/start" where the engine turns itself off when the vehicle is at rest e.g. at traffic lights etc then automatically turns itself back on when you move on. There are relative threads here: Auto Stop / Start
 

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2017 2.5i Premium CVT
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56 Posts
Just be glad you didn't run it out of fuel, that can be very expensive.
sounds like a good reason to keep the tank relatively full -- especially if you are the absent minded type. I know I've left mine running in the garage thinking I was going to come right back out, only to get distracted with something else while indoors, and wasting 10 minutes of idled fuel usage.
 
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