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Old 02-22-2002, 10:24 PM   #1
bmacauto
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Member#: 14941
Join Date: Feb 2002
Default Engine oil leaking into transmission

For the past 1300 miles my my99 has consumed a quort of oil. I just changed the oil for the first time and noticed that the oil was low, but i thought the dealer might of just underfilled it. The car has 36400 miles on it. The oil comsumption was very odd as i just changed the sparkplugs and they were un-foweled, no smoke blowing or wet exhaust tip. No drips in the parking spaces and no leaks anywhere any the eninge. About 2000 miles ago i switched to redline 75w90ns, after i changed it the dipstick read fine. Now, after adding a quort of oil to the engine (5w30), my MT dipstick reads way over the F line, it's just at the point where the stick goes from flat to round, and rectently the MT has gotton more cruchny (lower viscoisty?) How bad is having all the extra 5w30 in the tranny? It will be fixed by the dealer, but is my tranny dammaged because of this? Is this even possible? Before i baught the car, the dealer said they had to fix a seal in the front of the engine(very small leak), maybe they put something together wrong, any ideas??
Brian
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Old 02-23-2002, 01:43 AM   #2
Suebee2
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Location: Buffalo, New York
Vehicle:
2002 Forester
Sedona Red

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I can't think of any way for engine oil to end up in the trans.

Who's putting what fluid where ?


I'd be checking out who is working on your car when it's at the dealer---real close !
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Old 02-23-2002, 02:23 AM   #3
HndaTch627
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Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
Vehicle:
'01 GC8 Dinged STM
'09 Concours 14 ABS Black

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it would be 99.9% impossible for engine oil to travel out the rear main seal...around the flywheel, onto the input shaft and thru the input shaft seal of the trans.

did you check the fluid level after the car had say a while??

jeremy
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Old 02-23-2002, 09:40 AM   #4
bmacauto
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Your absolutly right, there isn't a way for oil to go from the engine to the MT, I wasn't thinking clearly last night. It would just leak out of the bell housing and mess my clutch assembly all up. hmmmm..... this is driving me nuts, my car really is eating oil, but i have no idea where it's going. I've had the car up on the lift and havent found any leaks. The mechanic who filled my MT is a friend of mine, and know's what he's doing. I only baught 4 bottles of the redline oil and he returend the 4th to me with about half left(maybe more), so i dont see how he could of overfilled it. My coolant is clean, allthough is wasn't all the way up to the cap when i checked it, about 3/4 inch down. Any other idea's of what's going on?
Brian
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Old 02-23-2002, 12:51 PM   #5
HndaTch627
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'01 GC8 Dinged STM
'09 Concours 14 ABS Black

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blown head gasket....i bet you that you are buring oil as well, the plugs may not show it but i bet you that's why you are losing oil.

Jeremy
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Old 02-23-2002, 04:00 PM   #6
bmacauto
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Hndatch, I have no secondary indications of burning oil, ie, blue smoke on startup or any smoke on acceleration, oil in the coolant, or wet-oily exhaust build up. I didn't realize that you needed to wait 1/2 hour or more before checking the oil, I pulled into a gas station and checked it, so maybe I just didn't give it time to drain. The oil level in the MT is fine, I think I checked it when it was hot, so it read over, anyhow, it's fine now. My dipstick is also very hard to read, oil smeared up the sides, and dry in the middle.
Brian
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