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08-20-2013, 10:32 PM | #76 | |
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Quote:
wayWAY too long on that garbage 'blow me up a motor' oil and i predict that you will soon have a criticality event and need a new engine due to using that oil give it...mmmmm...a month or 2
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08-22-2013, 11:25 AM | #77 | ||
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Member#: 281670
Join Date: May 2011
Chapter/Region:
MWSOC
Location: Chicagoland
Vehicle:2012 WRX DGM |
Quote:
Quote:
Also, I found a pretty extensive thread on misfires and P0451 evap codes (which my car also threw the other day) on clubwrx: http://www.clubwrx.net/forums/genera...ol-system.html Basically, after my car’s CEL cleared itself on Monday, it re-appeared Tuesday with P0301 through P0304 again, but now with P0451. A prolonged rough idle shudder preceded the CEL. |
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08-22-2013, 12:34 PM | #78 | |
Scooby Specialist
Member#: 226331
Join Date: Oct 2009
Chapter/Region:
South East
Location: Knoxville, TN
Vehicle:2012 WRX Hatch Poor Man's Panamera |
Quote:
Moving forward, I would change your oil at half that interval with something like Pennzoil Ultra 5w-30 if you're going to stick with 5w-30. These oil threads always end up exactly the same, and we're straying from the original topic quite a bit. Here's a thread with a pretty good range of discussion and a few UOA's: http://forums.nasioc.com/forums/showthread.php?t=499177 Another: http://forums.nasioc.com/forums/show....php?t=2078671 |
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08-22-2013, 03:31 PM | #79 | |
Scooby Newbie
Member#: 281670
Join Date: May 2011
Chapter/Region:
MWSOC
Location: Chicagoland
Vehicle:2012 WRX DGM |
Quote:
You’re right, I've derailed this thread enough. I’ll read on my own and post elsewhere on that topic, but I’ll report back here what the dealership finds next week when I take the car in for the misfire/evap codes. |
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08-22-2013, 04:44 PM | #80 | |
Scooby Specialist
Member#: 226331
Join Date: Oct 2009
Chapter/Region:
South East
Location: Knoxville, TN
Vehicle:2012 WRX Hatch Poor Man's Panamera |
Quote:
Now you know and you can do your next change earlier, which gives you an excuse to spend some quality time under the car. |
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08-29-2013, 05:57 PM | #81 | |
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Member#: 281670
Join Date: May 2011
Chapter/Region:
MWSOC
Location: Chicagoland
Vehicle:2012 WRX DGM |
So I dropped the car off this morning and just picked it back up. Here is the summary on the invoice:
Quote:
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08-30-2013, 01:51 AM | #82 |
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Join Date: Apr 2004
Chapter/Region:
MWSOC
Location: Minnesota
Vehicle:2004 Forester STI Silver |
Side note:
Thin oil = high flow rate = high cooling rate Thick oil = low flow rate = low cooling rate Engine failures are often caused by heat build up. An engine build to tight tolerances needs a thin hot viscosity in order to have sufficient flow to cool. Most modern cars are now 20 weight because they are built so tight. Using thicker oils can cause problems and provide zero benefit. Typically a thick oil is used on a loose built engine or a worn engine that is beginning to have a lot of blowby. Thick oil can also be used if the temps are elevated sufficiently. However, a good radiator system should keep the engine running reasonably. If you're in a climate that is very hot, it's a better focus to upgrade the cooling system than to up the oil thickness. You can even run a lower temp thermostat and an oil cooler. At the end of the day you should only use a thick oil if the engine is built for or if the engine is worn. Using thick oil for the sake of using thick oil only reduces the cooling performance of the oiling system and can promote failure. These engines aren't built for thick oil and will have no benefit from using thick oil. You step to thick oil when the consumption goes up. If you're burning a quart in under 3k miles, you might consider stepping up to 40 weight. If you're burning a quart in under 3k miles with 40 weight, you can consider stepping to 50 weight. Consumption drops to about half for each step up, at least from my experience. By this point though, you really should be planning a rebuild because the wear's pretty significant. Also I agree with Scotty. I have no clue how oil viscosity causes CELs. It sounds quite silly. The oil is VERY, VERY thick cold and thins out a HUGE amount as it heats up. If viscosity alone caused CELs, you'd see this happening all the time, especially in colder climates where it takes a significant amount of time for the engine to warm up. It would throw CELs every day you drive the thing. |
08-30-2013, 07:53 PM | #83 |
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Had the CEL come on my 2013 WRX last weekend with 3500 miles.
First dealer had no clue, just reset it and told me that it was normal for this car to hesitate and shake at lower RPMs. Silly fellows. Anyway, they cleared the CEL and sent me on my way. Car continued to drive like crap,then the CEL showed up again 3 days later. Took it to a different dealer this time, they called Subaru of America and after a couple of checks they checked the grounding on the wiring harness, they re-soldered it and cleared the CEL. Drove it home for ten miles and I want to say that the car is back to normal. I can cruise in fifth gear at 2000 rpm and the car drives smooth. I will keep an eye on it and see how it goes. Cheers |
08-30-2013, 11:21 PM | #84 | |
Scooby Specialist
Member#: 226331
Join Date: Oct 2009
Chapter/Region:
South East
Location: Knoxville, TN
Vehicle:2012 WRX Hatch Poor Man's Panamera |
Quote:
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09-03-2013, 09:13 AM | #85 |
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Member#: 120057
Join Date: Jul 2006
Chapter/Region:
MWSOC
Location: *outskirts of motor city*
Vehicle:2018 WRX (base) 6spd WRB |
Sounds like the 02-05 EJ205 motors were much better motors than these new ej255/257's
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09-03-2013, 02:54 PM | #86 |
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Member#: 367348
Join Date: Sep 2013
Location: Portsmouth, RI
Vehicle:2009 WRX Hatchback Perry Tuned |
going through the same problem myself... just cracked ringland on piston #4 now the dealership is telling me the oil THEY have been putting in is failing... they recommend forge pistons
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09-04-2013, 02:40 PM | #87 | |
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Vehicle:2018 WRX (base) 6spd WRB |
Quote:
Then ask them what oil should you be using.....and then say SURE, throw some forged pistons in under warrenty |
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09-04-2013, 04:59 PM | #88 |
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Vehicle:2002 WRX psm |
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12-03-2013, 02:59 PM | #89 | |
Scooby Newbie
Member#: 281670
Join Date: May 2011
Chapter/Region:
MWSOC
Location: Chicagoland
Vehicle:2012 WRX DGM |
Just to update, they had to replace my engine harness because of a bad connection. They think that's what was causing the misfires.
Quote:
http://www.clubwrx.net/forums/showthread.php?p=3171210 |
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12-04-2013, 02:48 AM | #90 |
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Chapter/Region:
Tri-State
Location: Williamstown NJ
Vehicle:2003 Impreza WRX wgn Silver |
I know this may seem strang but here at my subaru dealer we have found that clogged evaporation canisters have been cough misfires n roughness.....often the culprit, ......spiders o_0
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12-04-2013, 02:49 AM | #91 |
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Member#: 198008
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Location: Williamstown NJ
Vehicle:2003 Impreza WRX wgn Silver |
Causing* #spellcheckfail
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12-04-2013, 11:07 AM | #92 |
Scooby Newbie
Member#: 281670
Join Date: May 2011
Chapter/Region:
MWSOC
Location: Chicagoland
Vehicle:2012 WRX DGM |
Well, I was about to look up how to check evaporation canisters until I saw "spiders"; now I'm just thinking about how to torch the car and start from scratch if the CEL light comes back.
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12-04-2013, 12:13 PM | #93 |
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Tri-State
Location: Williamstown NJ
Vehicle:2003 Impreza WRX wgn Silver |
Lol...yeah u be suprised how often it happens
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01-05-2014, 04:48 PM | #94 |
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Member#: 377229
Join Date: Dec 2013
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LAN oil flush involves 2 oil changes and a Subaru branded oil flush crankcase additive. So 110$ is fair. Use the oil they tell you. You can buy it by the quart at your local dealer.
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