Longevity - Subaru Forester Owners Forum
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post #1 of 12 (permalink) Old 03-05-2009, 11:30 AM Thread Starter
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Longevity

I'm new to this forum and I have a couple questions.

I recently bought a 2009 Forester 2.5XT and I was wondering what modifications can I make to the engine and/or exhaust to increase longevity of the vehicle?

I am mainly concerned about longevity and not necessarily horse power.
Friends have suggested for starters, boost control and a turbo timer.

Any advice would be greatly appreciated. Thanks.

Last edited by machman; 03-14-2009 at 07:19 PM.
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post #2 of 12 (permalink) Old 03-05-2009, 11:34 AM
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^^You don't need a turbo timer or any kind of boost control for longevity. If you are strictly looking for longevity, don't change anything!

Good maintenance is the only thing you need to worry about. If you are really concerned, frequent fluid changes and synthetic fluids would be your best mod. Turbo timers are a concern of the past. The new systems have some kind of design where after you shut off, coolant still circulates through the turbo. That being said, don't floor it and then turn our car off. A minute of normal driving should be enough. Nobody here that I've seen uses a turbo timer anymore.

Maybe look into a catch can, but I don't really think that matters for reliability.

'05 XT 5 spd VF - SOLD
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post #3 of 12 (permalink) Old 03-05-2009, 11:37 AM
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Welcome to the forum and congrats with the new FOZ. Lots of great info here. I have heard about both although I believe the turbo timer isn't necessary unless you run your vehicle hard. If not just wait 15 -30 seconds before you shut the vehicle off, at least thats what the manual says. Someone will chime in I'm sure.

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post #4 of 12 (permalink) Old 03-05-2009, 11:38 AM
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For longevity, just do the regular maintenance and forget about the mods. You have a good start living somewhere where you don't get snow so you don't have to worry about road salt. Change your oil when you're supposed to, and make sure to use the right coolant. The turbo timer isn't really needed because the turbo bearing cartridge is water cooled. I don't see how boost control would help longevity unless you want to limit boost. I don't know why you would buy a turbo car and limit boost though. Other things to consider might be synthetic oil, atf, and gear oil.

2005 Obsidian Black Pearl XT w/4eat
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post #5 of 12 (permalink) Old 03-05-2009, 11:40 AM
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Maybe a transmission cooler and an oil cooler. But I really don't think either of those things are necessary unless you are towing.

'05 XT 5 spd VF - SOLD
'13 XT Touring
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post #6 of 12 (permalink) Old 03-05-2009, 12:17 PM
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Maybe a transmission cooler and an oil cooler. But I really don't think either of those things are necessary unless you are towing.
Agreed. A transmission cooler will also help the whole cooling system to cool better. I had made a post about the oil cooler, but adding one also opens up other concerns, such as oil pressure, and where to run the lines. The oil filter is very close to the exhaust manifold, so running lines from that location might not be a great idea.

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post #7 of 12 (permalink) Old 03-05-2009, 01:33 PM
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Originally Posted by machman View Post
I'm new to this forum and I have a couple questions.

I recently bought a 2009 Forester 2.5XT and I was wondering what modifications can I make to the engine and/or exhaust to increase longevity of the vehicle?

I am mainly concerned about longevity and not necessarily horse power.
Friends have suggested for starters, boost control and a turbo timer.

Any advice would be greatly appreciated. Thanks.
Keep good maintenance habits. Buy good quality oil & filter, change oil religiously, have oil analyzed every 10k or so to monitor engine health.

Forget about mods.

-Silke
04 FXT PP PSM ~ "Subed"
98 Forester S ~ "Slynki"
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post #8 of 12 (permalink) Old 03-05-2009, 03:14 PM
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Possibly a protune, some of the newer turbo subarus seem to not have the greatest programming from the factory. Otherwise just keep up to date on maintenance. Stay away from jiffy lube :-P. Stock, the 2.5 seems to last 200,000+ no problem with normal driving.

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post #9 of 12 (permalink) Old 03-05-2009, 03:40 PM
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^^Funny you say that. I trust Jiffy lube more than my dealer!

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post #10 of 12 (permalink) Old 03-05-2009, 04:27 PM
 
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The new systems have some kind of design where after you shut off, coolant still circulates through the turbo.
Subaru has been using a gravity-siphon cooling system since the 1989 Legacy Turbo. No Subaru has ever "NEEDED" a Turbo Timer.

I had one on my old car simply for cold mornings. I had it wired so it would only work when the car was in neutral, the e-brake up, and the brake pedal left untouched. Push in the clutch, tap the brake, or put down the e-brake, and the car would shut off.

09 SWP Outback 2.5XT 5MT 263whp, 337 lb-ft
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post #11 of 12 (permalink) Old 03-14-2009, 07:19 PM Thread Starter
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Thanks :)

Thankyou so much to all of you that replied. I appreciate it.
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post #12 of 12 (permalink) Old 03-15-2009, 06:59 AM
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I have one other piece of advice for longevity. Stay out of the engine/exhaust forum. You have the potential to read about astronomical power levels and then go on the quest to attain such power levels--> which could lead to engine blowup...

Just messing around. Welcome to the forum. There are a ton of really knowledgeable members here who can/will help with any issues.
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