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Old 01-26-2011, 06:52 PM   #1
rick-l
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Default 2004 RS 2.5 seeping oil from head gasket

At least that is what the Subaru dealer said. I haven' seen it but no spots on the driveway.

Is this real common and what made this happen. It seems like that oil passage on the bottom of the block would be under real low pressure. Is the failure going to propagate to the oil - water boundary and the water - combustion chamber?

When I searched I found a lot of threads about pre 2002s leaking anti freeze but not oil.
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Old 01-26-2011, 08:05 PM   #2
Escape-performance
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This is crazy common, we get new cars with 40k on them doing the same thing. I can't tell you why it leaks, but you are correct it is from the oil drain passage and it is not under pressure. It is not likely that any other problems rise from this other than more oil leaking. You will not see spots on the driveway, the oil leaks slowly and has to go down the sub frame before dropping to the ground. The actual subaru warranty info is "seepage" is ok until it is dripping down the frame......and they only warranty the head that is leaking, not both automatically. Keep in mind dealer techs love doing head gaskets, it pays 12hrs and can be done in 5.....kinda shooting myself in the foot here.
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Old 01-26-2011, 10:26 PM   #3
redblack
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My 2005 driver's side head gasket has been seeping for over a year now, no overheating or oil mixing with coolant. I usually give it a quick wipe at every oil change, i'll probly get it fixed once it either starts to drip or at the first sign of overheating.
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Old 01-27-2011, 02:43 AM   #4
williaty
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To go the other way, I just had a guy come to me for service who "had a headgasket leak". Turns out, he'd had it for a long time and had just let it go. He had enough coolant in the oil that it drained out fluorescent green. Ruined 2 cams, a head, and did unknown damage to the shortblock internals.

So hoping that the external oil seep is the only problem with the gasket can bite you in the ass if you wait long enough.
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Old 01-27-2011, 11:27 AM   #5
Bluefoton
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Had the same thing, followed by overheating a while after. The gasket basically started to rot

Do both, and change your clutch while at it (if you have a MT and decent mileage)
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Old 01-27-2011, 05:52 PM   #6
Rundown
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Are there other likely places for oil to seep? I was shocked last week to see that I was sown nearly 2 quarts of oil. As above I found no puddles on the drive.
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Old 01-30-2011, 05:45 PM   #7
vinxH
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^Your motor could be burning the oil.
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Old 01-30-2011, 08:16 PM   #8
Escape-performance
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osv valves if you have them, or crank seals.
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Old 01-30-2011, 10:50 PM   #9
mike199008
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i had the same problem with my 02 never had a drop of oil on the driveway but everytime i got gas i was putting in a quart. eventually it started using coolant until the point by the time you would drive 20 miles it would be out of coolant and ready to overheat. needlest to say it lasted for about a year and then threw a rod.
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