Just changed the oil on my new Forester for the first time last weekend at 2700 miles. I warmed up the car for 10 minutes, cooled down for another 10 and pulled the drain plug, then filter - I hate figuring out plastic cover clips and stuck plugs and tight filters on the first changes.......
Anyway, the black Subaru filter that installs upside down was completely drained out. I cant see an anti drainback valve either. The Wix I installed has a valve. How can this be right from the factory?
I still need to cut it open and inspect. There was a little metal in the pan - some glitter in the light, but nothing alarming, but enough to justify in my mind an early change. My thoughts other than dry start ups - would the filter draining back regularly allow dirt to flow back to the pan? I know it is a small filter, but not good design. Anyone know if the blue subaru filters have valves?
Anyway, the black Subaru filter that installs upside down was completely drained out. I cant see an anti drainback valve either. The Wix I installed has a valve. How can this be right from the factory?
I still need to cut it open and inspect. There was a little metal in the pan - some glitter in the light, but nothing alarming, but enough to justify in my mind an early change. My thoughts other than dry start ups - would the filter draining back regularly allow dirt to flow back to the pan? I know it is a small filter, but not good design. Anyone know if the blue subaru filters have valves?