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Old 09-24-2013, 03:28 AM   #4151
chubs73
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There is an updated oil consumption test for the 12 impreza. If going through 1/3 qt within 1200 miles. I will yave to re-read, but think there is an oil ring replacement procedure. Have your dealer look umder the forms section on subarunet and they will find it
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Old 09-24-2013, 01:37 PM   #4152
79letour
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I cant find anything to substantiate or even suggest that 1/3qt in 1200 miles will get you anything fixed. If you have a link or a pic please post it.
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Old 09-24-2013, 09:21 PM   #4153
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Update:

So I finally got a bit of good news the other day.

Supposedly, the second head assembly that my dealer has been waiting for all this time has finally made it over from Japan and should now be at SOA in NJ. From there it's being sent to Subaru of NE and then off to my dealership. Not sure what the time frame for shipping and repair is, but I'm hoping that it'll only be a couple more weeks at the most.

So far its been over 3 months...
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Old 09-24-2013, 10:19 PM   #4154
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Damn it man. thats a long time.
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Old 09-25-2013, 01:38 AM   #4155
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I work for subaru. Applies to 2.0 na and 2.5 na only. The new oil consumption worksheet to be used in conjuncrion with TSB 02- 143,144,145,and 146-13. Your dealer will find it under the forms section on subaru net.
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Old 09-25-2013, 01:40 AM   #4156
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The new consumption test must be done before any internal repairs aee performed. Oil control ring tsb. It was just released within the last week or so.
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Old 09-25-2013, 01:54 AM   #4157
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Quote:
Originally Posted by chubs73 View Post
The new consumption test must be done before any internal repairs aee performed. Oil control ring tsb. It was just released within the last week or so.
That may be that valve I was talking about earlier.
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Old 09-25-2013, 02:54 AM   #4158
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I havent had a chance to look up the tsb myself yet, but will and pist back. Believe it is replacing the oil control rings on the pistons
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Old 09-25-2013, 03:16 AM   #4159
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So far the tsb relates directly to the 2.5 na fb motors and it is replacing piston rings. TSB 02-143-13. But the oil consumption forms for the 2.0 and 2.5 fb motors lists 02-143,144,145,146-13. So I'm gonna assume 144, 145,146 tsb's will release shortly and deal with the 2.0 in different models would be my guess. Our field engineer and a rep at subaru hinted to this coming down the pipe for awhile now. Just an fyi
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Old 09-25-2013, 07:41 AM   #4160
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Quote:
Originally Posted by pRiMe DiReCtIvE View Post
That may be that valve I was talking about earlier.
No, rings are not the valve. I believe what you're referring to is the Positive Crankcase Ventilation (PCV) valve, which can also cause oil consumption if it's bad.

Replacing the PCV valve is a significantly easier job than replacing rings. I can replace a PCV myself, but replacing rings is beyond my shadetree mechanic abilities.
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Old 09-25-2013, 08:15 AM   #4161
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If it were the pcv this thread would have been a page or two long.
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Old 09-25-2013, 01:19 PM   #4162
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Quote:
Originally Posted by sgoldste01 View Post
No, rings are not the valve. I believe what you're referring to is the Positive Crankcase Ventilation (PCV) valve, which can also cause oil consumption if it's bad.

Replacing the PCV valve is a significantly easier job than replacing rings. I can replace a PCV myself, but replacing rings is beyond my shadetree mechanic abilities.
Thanks for the detail
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Old 09-25-2013, 01:22 PM   #4163
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Quote:
Originally Posted by sgoldste01 View Post
No, rings are not the valve. I believe what you're referring to is the Positive Crankcase Ventilation (PCV) valve, which can also cause oil consumption if it's bad.
or under designed.
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Old 09-25-2013, 01:32 PM   #4164
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Quote:
Originally Posted by chubs73 View Post
So far the tsb relates directly to the 2.5 na fb motors and it is replacing piston rings. TSB 02-143-13. But the oil consumption forms for the 2.0 and 2.5 fb motors lists 02-143,144,145,146-13. So I'm gonna assume 144, 145,146 tsb's will release shortly and deal with the 2.0 in different models would be my guess. Our field engineer and a rep at subaru hinted to this coming down the pipe for awhile now. Just an fyi
Can you get onto STIS?

02-145-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2013MY Impreza and 2013MY XV Crosstrek) Sep 25, 2013 [View PDF]
02-144-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2014MY Forester) Sep 25, 2013 [View PDF]

http://techinfo.subaru.com/static/whatsNew.html

-Dennis
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Old 09-25-2013, 02:47 PM   #4165
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I would love to see what the tsb says!
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Old 09-25-2013, 02:58 PM   #4166
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As would I.
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Old 09-25-2013, 03:37 PM   #4167
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Quote:
Originally Posted by bluesubie View Post
Can you get onto STIS?

02-145-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2013MY Impreza and 2013MY XV Crosstrek) Sep 25, 2013 [View PDF]
02-144-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2014MY Forester) Sep 25, 2013 [View PDF]

http://techinfo.subaru.com/static/whatsNew.html

-Dennis
Very interesting. I would also love to read these TSBs.

BTW, there's also a TSB for the Legacy and Outback.
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Old 09-25-2013, 04:26 PM   #4168
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Stolen from subaruforester.org:
Quote:
This from the description: "Bulletin Description: This bulletin provides information regarding a change made to the surface treatment applied to the oil control piston rings for 2.5L FB engines. The change was made as a result of some limited findings of unanticipated wear of these rings. Oil consumption will be higher than normal and consistent, if this wear occurs, the condition remains until repair. Unusual swings or variations in oil consumption are not consistent with this condition and may be the result of vehicle usage rather than the condition described here. Additional information is supplied in this bulletin to assist in the assessment and determination if vehicle usage is a reason for this varied oil consumption."
Ironically, the Forester oil burning thread started back in June 2011 regarding consumption in an MY2011, but 2011's are not mentioned in the TSB. Where's the love Subaru?



-Dennis
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Old 09-25-2013, 04:32 PM   #4169
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Quote:
Originally Posted by bluesubie View Post
Can you get onto STIS?

02-145-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2013MY Impreza and 2013MY XV Crosstrek) Sep 25, 2013 [View PDF]
02-144-13 Technical Service Bulletin Surface Treatment Change To Oil Control Piston Rings (2012-2014MY Forester) Sep 25, 2013 [View PDF]

http://techinfo.subaru.com/static/whatsNew.html

-Dennis
A solution to my '12 Impreza burning 1/2 quarts in 1200miles during oil consumption test! Will tell dealer when I go back for last 1200mile test. Thanks!
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Old 09-25-2013, 04:38 PM   #4170
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Quote:
Originally Posted by Unknown77 View Post

A solution to my '12 Impreza burning 1/2 quarts in 1200miles during oil consumption test! Will tell dealer when I go back for last 1200mile test. Thanks!
Good luck! Hopefully your dealer doesn't try to d!ck you around. Keep pushing until you get results.
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Old 09-25-2013, 04:41 PM   #4171
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Your consumption will probably have to exceed SoA's oil consumption guideline for them to do anything.

-Dennis
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Old 09-25-2013, 05:14 PM   #4172
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Japan sure is slow to react to thngs these days. Funny "subaru engineering"just put out that article saying how normal it is to burn oil and even had an illustration of a chick checking her oil.
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Old 09-26-2013, 02:08 AM   #4173
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Yes I can get onto stis. I use a crappy little tablet at home and nit exactly sure how rompost the tsb tonthe site. At work I strictly stay on subarunet and not anything else on the internet.
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Old 09-26-2013, 02:21 AM   #4174
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APPLICABILITY: 2012 - 13MY Impreza Models with 2.0L FB Engines 2013MY XV Crosstrek
NUMBER: 02-145-13 DATE: 09/25/13
SUBJECT: Surface Treatment Change To Oil Control Piston Rings INTRODUCTION
This bulletin provides information regarding a change made to the surface treatment applied to the oil control piston rings for 2.0L FB engines. The change was made as a result of some limited fndings of unanticipated wear of these rings. Oil consumption will be higher than normal and consistent, if this wear occurs, the condition remains until repair. Unusual swings or variations in oil consumption are not consistent with this condition and may be the result of vehicle usage rather than the condition described here. Additional information is supplied in this bulletin to assist in the assessment and determination if vehicle usage is a reason for this varied oil consumption.
It is critical to understand the nature of the concern as reported by the customer and to confrm any actual condition prior to attempting any repairs. Some oil consumption can and should be expected as a by-product of engine operation where no concern exists. Failure to recognize this and correctly diagnose the condition presented can result in unnecessary repairs and in the worst case, an increase in oil consumption. The information supplied in this bulletin is only applicable to a limited number of vehicles within the specifc production range noted below exhibiting the condition(s) previously described.
It is important to read and understand this bulletin completely before starting an oil consumption test or initiating any repairs.
Customer concerns related to possible oil consumption are generally initiated by one of two scenarios.
• The customer reports the low engine oil level (not low engine oil pressure) lamp has illuminated.
• The customer believes the engine oil level on the dipstick has dropped when checking the oil.
Either of these situations by themselves does not directly indicate a concern with the vehicle exists beyond the need to add engine oil as part of normal maintenance. It is important to understand all the factors involved in order to make a sound decision regarding whether or not a repair is required or even if an oil consumption test should be started. When speaking with customers regarding a reported or suspected oil consumption concern, always keep the following information in mind:
Some engine oil will always be consumed as part of normal engine operation. How much and Continued...
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Old 09-26-2013, 02:22 AM   #4175
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it is consumed varies according to manufacturing tolerances, wear, and vehicle usage. With the extended service intervals commonly used for today’s engines combined with one or more of the conditions listed below, typical engine oil consumption may require the adding of engine oil in between scheduled maintenance intervals. If a customer inquires about oil consumption and is close to their next service interval, and consumption has not exceeded 1 quart in that time, the consumption rate should not be considered unusual. Consumption at a rate greater than this should be reviewed on a case by case basis after reviewing the vehicle’s usage patterns / history. Higher than expected oil consumption may occur under any of the following conditions:
• When the engine is new and within the break-in period (during the frst 3000 miles of operation)
• When the engine oil being used is of lower quality (other than “Energy or Resource Conserving” API Classifcation SM or SN or ILSAC, look for the starburst design with GF-4 or GF-5)
• When the incorrect oil viscosity is used (viscosity other than 0W-20 in the case of these specifc vehicles)
• When engine braking is employed (Downshifting to make use of the transmission’s gear ranges and the engine to decelerate the vehicle)
• When the engine is operated at high engine speeds (Continually or under frequent and repetitive hard acceleration such as frequent freeway merging)


• When the engine is operated under heavy loads (Frequent carrying of cargo, multiple passengers or trailer towing)
• When the engine idles for long periods of time (Frequent use of a remote engine start system followed by some period of idling as an example)
• When the vehicle is operated in stop and go and/or heavy traffc situations
• When the vehicle is used under severe temperature conditions (Cold or hot)
• When the vehicle accelerates and decelerates frequently
• Frequent short trip driving where the engine may not reach full operating temperature
Under these or similar operating conditions, the oil level should be checked regularly. The engine oil and flter may also need to be changed more often.
As related information, the engine oil low level warning light is designed to illuminate when the engine oil level in the sump is approximately 1.1 quarts low. This may vary with different driving and road conditions. Keep in mind that oil remains suspended in the engine while running and will not fully drain back until the engine has been shut off for at least 5 minutes. This is why waiting at least 5 minutes while parked on a level surface before checking the oil level is critical to getting an accurate gauge of the oil level in the engine. In some rare cases, this light may illuminate with more oil present when the engine is running due to specifc road or driving conditions such as repeated hard acceleration / deceleration, tight turning, driving on undulating roads. In these cases, the engine oil low level warning light will generally reset on its own once the actual level is determined to be above the illumination threshold. This reset process may take some time as certain driving parameters must be met for the system to self-correct. As long as the oil level has been checked and adjusted (if necessary), the immediate concern has been addressed. If the engine oil low level warning light does not extinguish on its own after some time and the oil level remains full, an inspection of the oil level sensor circuit and components should be performed.
NOTE: The engine’s specifed oil capacity is 5.1 US quarts for XV Crosstrek and 5.1 US quarts
for Impreza. Continued...
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