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Old 12-16-2012, 08:36 PM   #1
bruticus
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Member#: 10640
Join Date: Sep 2001
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Location: Does MarcellusWallace
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look like a bitch?
Say what again!!

Default Oil consumption has gone up recently?

First: I searched, but couldn't find anything similar-enough to my post to answer my questions.

b/g: I think I'm fairly observant about cars, for example when tires are low, engines don't run properly, etc. And I am very sensitive to "highway odors" as when a semi ahead of us has a cooked brake lining, or somebody is running a rich mix, etc.

My wife has a '12 Forester 2.5 NA with ~28500 miles on it. Per the windshield sticker the dealer put on at the last change, her next change is due at 31000.

Friday night we drove ~220 miles for a holiday visit. When we stopped at the halfway point to refuel, I smelled hot oil, strongly, while close to the car. I have never smelled hot/burned oil near her car; until that moment, her car has done nothing I consider out of the ordinary.

Saturday morning I checked the oil. It was almost a quart low, and the oil on the stick was very black and had an acrid scent. I couldn't see any trace of leak/etc. under the hood, but there was quite a bit of nasty, black sludge at the tip of the exhaust, around the bottom third of the circumference; the rest of the inside of the pipe was clean. The stuff was not oily-water, but a thick oily sludge. It didn't smell of gas, but it had the acrid smell that the dipstick had, and there was enough that it ran/dripped off my finger. Again, this is something I've NEVER noticed about her car before.

I added 0W-20 until the stick showed 1/8" from full, because the engine was still cold and I didn't want to overfill it. My wife called the dealer and they told her the standard "it's normal for engines to burn some oil" blah-blah. I told her to tell them that this engine has NOT used/lost oil before, and there has never been any crud in the exhaust like the engine is just dumping oil straight through into the exhaust.

We drove home today, and at the halfway point I checked the oil and the stick still showed 1/8" from full, so I added a little more, waited a few minutes for the oil I'd added to run down through the engine, and the stick showed completely full. Then I checked the exhaust tip, and the entire circumference, as far inside as I could see, was coated with a solid layer of black, dry soot; I could scratch/scrape some off, and it smelled of oil.

It's going to the dealer Tuesday night, so I'd like to take the pulse of the community and be forewarned/fore-armed when they report to us Wednesday.

DjB
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Old 12-22-2012, 01:21 PM   #2
scarney1988
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Default

Check your PCV line and see if its coated with oil? If it is maybe try replacing your engine air filter as it may be restricted causing a larger draw on the pcv line (drawing oil into the combustion chamber). Wash your line out with some soapy water and reinstall than recheck. IF the problem persists, maybe try a catch can to remedy?

Just a few ideas.

Good luck
Sean
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Old 12-22-2012, 02:27 PM   #3
Ysidro
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07 WRX Ltd
The Mighty Evo;Fun CRZ

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stop going to the dealer for oil changes and do it yourself.
try seafoaming it to try and get the dirty,nasty oil out.
Then put in some fresh good quality oil maybe even synthetic.
continue to monitor to see if it makes any difference.
if it does then seek another dealer for your oil changes.
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Old 12-23-2012, 12:19 AM   #4
kevwill
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Location: socal
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2009 2.5
pearl white

Default all bad

I have a 09 2.5 I bought new and put 53k on it, I was due for an oil change and was planing to do it the next day. Then came the knocking noise to my dismay my beloved subie had burned through 4 quarts of oil and threw a rod between oil changes. Like the op no droppings and I didnt notice any smell or smoke just a dead subie. The good news is I still had 7k before the drivetrain warranty ran out so subaru is fixing it for the low price of free. But this is diconcerning to say the least
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Old 12-23-2012, 02:55 AM   #5
Dr. Octawakaoctapus
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teal

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The newer Foresters have a TSB out for an oil leak, have that checked out maybe. Something to do with the variable valve timing.
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Old 12-23-2012, 01:27 PM   #6
cal_look_zero
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Location: Grass Pants, OR
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1997 Outback Sport
383hp/345tq

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I don't see how SOA can recommended a 0W20; synthetic or not. My car has a fit if I don't run 15W40
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Old 12-23-2012, 03:14 PM   #7
Supraru
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black

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Quote:
Originally Posted by cal_look_zero View Post
I don't see how SOA can recommended a 0W20; synthetic or not. My car has a fit if I don't run 15W40
You have a 1997 subaru, you do realize it's 9 days from 2013 right? I'm not a professional or anything but I'm pretty sure there have been tons of advancement from a 97 ej to a 13' fb. Get with the times.
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Old 12-23-2012, 06:33 PM   #8
bruticus
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Location: Does MarcellusWallace
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look like a bitch?
Say what again!!

Default

Thanks everybody for your comments!

Dealer told her that a cam seal might be bad, or it might be something further-down (and more serious) inside the engine. She has to do the UOA, 1/1K miles for 3K total miles, before they'll actually open up the engine.

I'm torn between hoping it's something minor, and hoping it's something that will require a completely new engine.

Thoughts?

DjB
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Old 12-23-2012, 06:43 PM   #9
Supraru
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99' 2.5Rs
black

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Quote:
Originally Posted by bruticus View Post
Thanks everybody for your comments!

Dealer told her that a cam seal might be bad, or it might be something further-down (and more serious) inside the engine. She has to do the UOA, 1/1K miles for 3K total miles, before they'll actually open up the engine.

I'm torn between hoping it's something minor, and hoping it's something that will require a completely new engine.

Thoughts?

DjB
My thought is you were leaking oil somewhere or the right amount wasn't originally put in. 12 foresters don't have an oil issue. There was a batch of bad heads in 2010 but that's about it.
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Old 12-29-2012, 12:03 AM   #10
Sir-Knight
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Chapter/Region: E. Canada
Location: the 'wa, ontario, canada
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2007 Impreza 2.5i SE
newport blue pearl

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Quick and easy check of the AVLS sensors (variable valve timing pressure sensors)

on the front of the engine on the driver's side head, there should be a wire with a white cap on it sticking on the top of a cylinder plug... Check to see if there's any oil on or around it... should be just under the oil fill cap. The other AVLS pressure sensor is on the opposite head on the back of the engine under parts of the intake and wiring harness. If either are seeping oil, they need to be replaced. I had both of mine replaced at like 48k kms.... the driver's side one was vomiting oil like you wouldn't believe within about 500km of it starting to weep. The passenger side one didn't go past weeping.

It's like a 15-20$ part... all you need is a socket and some high temp loctite. The cap and wire just pull off when you squeeze the sides. Warranty did one, they claimed the other was fine but my mechanic said he had spotted oil coming from it before the front one started pissing. I couldn't do much about it until I got back from a 900km trip.

Suffice it to say, but I went through an extra 2 quarts of oil that weekend and didn't have to rust proof under my car that winter.


Also, if they botched the filter change on an oil change, oil pisses everywhere onto the header and exhaust, so it tends to take a while to burn off.
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