So I noticed the oil pressure gauge on my '94 Subaru Legacy seemed to be reading low. After I replaced the oil filter, the problem went away.
It was taking about four seconds after startup for the oil pressure light to go off, then the oil pressure would very slowly rise. But it would never go above 25 psi.
After replacing the oil filter, the pressure now climbs quickly to about 65psi after start up, which is what I expect (this is with engine cold).
So what's up with this oil filter? Was it defective? It was a Amsoil eao34, says Made in Mexico Jul0209. I checked the ADBV and it didn't seem to be stuck. I guess maybe I should cut it open and see if anything is funky in there?
It really irritates me that it seems like it was the oil filter, because this is supposed to be a premium oil filter, and here I was running the engine for a week or so with highly suboptimal oil flow.
At first I thought it was the pressure gauge was bad (Sunpro I had just installed). So I replaced the sender and gauge, but it did the same thing. So next I tried the oil filter, and that seemed to fix it.
It was taking about four seconds after startup for the oil pressure light to go off, then the oil pressure would very slowly rise. But it would never go above 25 psi.
After replacing the oil filter, the pressure now climbs quickly to about 65psi after start up, which is what I expect (this is with engine cold).
So what's up with this oil filter? Was it defective? It was a Amsoil eao34, says Made in Mexico Jul0209. I checked the ADBV and it didn't seem to be stuck. I guess maybe I should cut it open and see if anything is funky in there?
It really irritates me that it seems like it was the oil filter, because this is supposed to be a premium oil filter, and here I was running the engine for a week or so with highly suboptimal oil flow.
At first I thought it was the pressure gauge was bad (Sunpro I had just installed). So I replaced the sender and gauge, but it did the same thing. So next I tried the oil filter, and that seemed to fix it.