The reason I cut this unused filter is because I thought that 2008 would be too old for a filter to use the next time the filter is changed; in fact, there is some rust on the inside of the base plate. I had bought quite a few Zetec filters from Rock Auto since they can be hard to find, but doing so is no longer necessary now that AAP is carrying Carquest filters (red available now, blue coming soon). The CQ Blue is a reboxed M1 at a much more reasonable price. Part #85315.
Some interesting things to note with this old M1:
Date code 050708H1 (May 7, 2008)
Made before Fram took over Champion
Leaf spring only has two legs, as opposed to the 4-legged leaf normally used in Champs of this application (8316/25230/1315); perhaps Champion switched to the 4-legs later on.
The media felt like very high quality stuff, even if it isn't the latest wire-backed synthetic (Fram does not make an Ultra XG8316)
Two anti-siphon valves (ADBV's in the opposite direction). One near the thread end, which is easy to press in, low-pressure. And another at the dome end, very high pressure, rather hard to press in!
The baseplate has six small, standard-sized holes. Newer Zetec Champs have eight holes, and one of them is twice the size of the others. Compare with other cut-and-posts on here of the Service Champ OF5230 and STP S8316.
The thread-end, easy-to-press valve
The dome-end, hard-to-press valve
Thread-end, easy-to-press valve, taken off the center tube
Dome-end, hard-to-press valve, still attached to center tube
Some interesting things to note with this old M1:
Date code 050708H1 (May 7, 2008)
Made before Fram took over Champion
Leaf spring only has two legs, as opposed to the 4-legged leaf normally used in Champs of this application (8316/25230/1315); perhaps Champion switched to the 4-legs later on.
The media felt like very high quality stuff, even if it isn't the latest wire-backed synthetic (Fram does not make an Ultra XG8316)
Two anti-siphon valves (ADBV's in the opposite direction). One near the thread end, which is easy to press in, low-pressure. And another at the dome end, very high pressure, rather hard to press in!
The baseplate has six small, standard-sized holes. Newer Zetec Champs have eight holes, and one of them is twice the size of the others. Compare with other cut-and-posts on here of the Service Champ OF5230 and STP S8316.
The thread-end, easy-to-press valve
The dome-end, hard-to-press valve
Thread-end, easy-to-press valve, taken off the center tube
Dome-end, hard-to-press valve, still attached to center tube