http://imgur.com/a/G4lnT
This is an OEM filter purchased from the dealer for my mom's 2011 Subaru Tribeca. The first thing you'll probably notice is the absence of an anti-drainback valve. This filter attaches directly to the bottom of the engine, so it sits "upside down" all the time. I don't know how many miles were on it, but like the Purolator in my other thread, it was probably 6-7k miles with Mobil 1 5W-30. This filter sat outside in the elements for 6-8 months before I cut it open. I couldn't find a batch number or date stamp anywhere on it. When you buy one of these new it comes with a plastic seal over the base plate end, so that seal may have had the stamp on it, or perhaps the box. I'll check next time. I "tested" the bypass valve by pressing it with my finger; it is very stiff!
This is an OEM filter purchased from the dealer for my mom's 2011 Subaru Tribeca. The first thing you'll probably notice is the absence of an anti-drainback valve. This filter attaches directly to the bottom of the engine, so it sits "upside down" all the time. I don't know how many miles were on it, but like the Purolator in my other thread, it was probably 6-7k miles with Mobil 1 5W-30. This filter sat outside in the elements for 6-8 months before I cut it open. I couldn't find a batch number or date stamp anywhere on it. When you buy one of these new it comes with a plastic seal over the base plate end, so that seal may have had the stamp on it, or perhaps the box. I'll check next time. I "tested" the bypass valve by pressing it with my finger; it is very stiff!