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Old 04-27-2014, 09:02 AM
Huskymaniac's Avatar
Huskymaniac Huskymaniac is offline
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Infamous Subaru Valve Cover Gaskets

Do they leak more based on age or mileage? At what age/mileage do you expect to see them start to noticably drip to the point where you see a spot on the driveway/garage? Is there any difference between the H4 and H6 engines?

Our Tribeca has hit 127K miles and 8 years. I have been somewhat surprised at how dry it has stayed up to now. The valve cover gaskets are starting to drip and the headgasket "might" be leaking oil externally too. Both are very slow leaks right now. The car has a timing chain so I haven't done anything with that, the water pump or the cam or crank seals yet. The car is due for new plugs, ATF, diff fluid and coolant. I'm wondering if it would make sense to just have my mechanic pull the engine and reseal everything and maybe put in a new water pump. I have no idea if they used a better water pump in this car since it has a timing chain. If not, that sucker is a ticking time bomb.

Thoughts?
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1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads
2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil
2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil
1992 Red Ferrari 348 ts, 82,XXX, Redline everything
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Old 04-27-2014, 10:18 AM
1986nate 1986nate is offline
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Re: Infamous Subaru Valve Cover Gaskets

Tony, the ez engines seem much better based on what I've seen. On all of the 4cyl, every 60-75k miles at most us typical.
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