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Old 01-19-2013, 11:24 PM   #1
Randy_Marsh
Scooby Newbie
 
Member#: 227575
Join Date: Oct 2009
Location: Mississippi
Vehicle:
2005 STi
AW

Default '05 STi burning oil...

Hey guys...it's been awhile since I've posted, been busy with the military. But I need some help.

I don't know if I have listed on here all the mods to the car, so here's a quick list: Stock internals, HTA Green Turbo (externally gated), APS cold air/front mount/turbo inlet/tgv deletes, and I guess all the supporting mods to hold that turbo (fuel system components, exhaust, professional tune, etc.) Problem: I went on leave for the last 11 days, but before I left, I changed the oil in the car and tightened down some clamps that were leaking from the front mount kit. I used the same oil I've used since I left MN and had to stop using Amsoil...Mobil 1 5w30. I drove the car the day of the oil change and two days after, nothing to report. The car sat on a level surface and was exposed to maybe 30-50 degree temps while I was gone. Driving the car now, there is a noticeable amount of blue smoke behind me (typically only when the car is under vacuum--after a gear shift or something and sometimes at idle.) It's not a crazy amount of smoke, I'm not rollin' around town like a skywriter or anything...it's just abnormal.

I'm going to dick with it tomorrow a little, work with the PCV, oil lines on the turbo, crank vents? I've got a short list of parts to check...I'd like a longer list. Any suggestions would be helpful...I can also answer any questions you have for me. Also, I bet it's relevant to let you know I do not use a catch can...10-15k on the set-up, I don't beat the ***** out of it. It's gotten me to and from work for the last 2 years, and that's about it. All parts were bout brand new.

Thanks
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Old 01-20-2013, 11:08 AM   #2
bluesubie
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Member#: 767
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: N.J.
Vehicle:
04 FXT

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Quote:
Originally Posted by Randy_Marsh View Post
I used the same oil I've used since I left MN and had to stop using Amsoil...Mobil 1 5w30.
Maybe I'm dense, but I don't completely understand this statement. Did you stop using Amsoil 5W-30 and switched to Mobil1 5W-30?

If so, after you dick around with checking things switch to Mobil1 0W-40, Castrol Syntec 0W-30, or Syntec 0W-40. Or just drive 5 miles so that you'll burn through a quart of the 5W-30 and top it off with Mobil1 15W-50.

Thank you for your service.

-Dennis

Last edited by bluesubie; 01-20-2013 at 11:15 AM.
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Old 01-20-2013, 11:56 AM   #3
Randy_Marsh
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Member#: 227575
Join Date: Oct 2009
Location: Mississippi
Vehicle:
2005 STi
AW

Default

Dennis,

I figured that would confuse at least a couple people lol. I am currently using M1 5w30. I used to use Amsoil since it was so readily available to me up North.

I'm starting to get concerned that the problem is bigger than anticipated...like ringland stuff :/. I'm a "hope for the best but expect the worst" kinda guy...and I'm also paranoid that my very expensive car is going to need some costly repairs lol.

I've browsed the forums and my car is only displaying bits and pieces of ringland symptoms. No smoke on start up, at idle, or at higher constant RPMs. Oil cap test fails for about 6.9 seconds and then it runs clear. Vacuum and low RPMs seem to be when the smoke is most prominent.

Someone calm my nerves and tell me my turbo is broken or I'm dreaming or something lol.

I'm getting a few parts from the store today. Tomorrow I plan a compression test, PCV swap (or at least clean cause we don't have a dealer here), turbo outlet oil check, down pipe oild check, air filter cleaning. As always, I'm open for opinions and suggestions.
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Old 01-21-2013, 11:35 PM   #4
Randy_Marsh
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Member#: 227575
Join Date: Oct 2009
Location: Mississippi
Vehicle:
2005 STi
AW

Default

Update--Cyl 4 failed the compression test. Squirted some oil into the cylinder and tried again, same results.

Leak-down scheduled for Saturday... Weighing my options now.

Bummer.
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