After now about 70K on the rebuild, I am noticing a little oil weep on the drivers side rear of the engine, about a year or so. It does not get any worse, nor enough to effect the oil level much between changes. However, I was wondering if any ya all have heard of stop leak helping with this issue? Or maybe switching from the synthetic to Dino would help. I am not talking about the coolant goop, which has been added religiously with every change, and that system is fine.

Thanks for any insight.

you don't mention what vehicle, year, or engine but oil additives and stop leaks are a really bad idea as any long term solution. if it's junk then do whatever you want. if you consider this a good vehicle that has more years/miles in it then don't use oil additives/stop leak. the best thing for an engine crankcase is oil and nothing else.

 

what gasket was used?

Thanks for pointing this out, as it is very valid. The car is '99 Forester, with the 2.5 SOHC (200K). Good condition and daily driver. No, I don't want to make things worse and can wait it out, there is no problem here in terms of urgency. It has actually been a very reliable car and owes me nothing.

Gaskets who knows- 2004, I suspect inferior.

with that much mileage, I personally would keep doing whatever you are doing. It's working well.

 

I personally would probobly run rotella t (DINO) 15w-40. I put it in all my subarus that are over 150k. But there are arguements against that. The only subaru I have had bottom end problems on is my 1997 DOHC outback, which has been overheated to hell