What so special about them for them to be 12 dollars? Do that last longer or what?

 

They gotta a nut lookin' thing on the bottom,so if you overtighten them when you put em' on,you can use your impact wrench to take em' off.

Otherwise,you'll be just as well of if not better with a Delco filter.

 

I would usually recommend a Delco filter, but since they have change their construction of the V8 filters (Do a search) and are now made to look like STP's , I went with a Bosch filter since that was the next grade up at Autozone.

PF 1218

 

I really don't know why these filters cost so much, but just as an FYI, if you don't mind paying 12-15$ for a filter, consider the Donaldson endurance. They actually have a filtration medium that resembles fiberglass insulation (it's synthetic material of some sort). I bought a couple through their website and they seemed to keep the oil a little cleaner for a longer period of time. They come recommended by TPIS and they are available through them, but of course they are a little bit more expensive there. A word of warning, however, there are no "wrench flats" on these filters!! Getting them on was easy using a strap wrench. Removal was a different story. I have since learned that hand-tightening as hard as you can is probably enough torque for one of these things anyway. Also, they are a couple of inches longer than a pf-25. They are the rough equivalent of a pf-35l. Good luck.

 

Who the hell puts an oil filter ON with a strap wrench??? OF course you can't get it off DUH!!!

 

There should be a thread on how to change an oil filter, it seems everyone knows the wrong way to do it. Tighten it, once the gasket makes contact with the block then tighten about 3/4 of a turn more.

 

you are correct sir.

 

I was referring to the Donaldsons. There is no practical way to tighten them on 1/8, 1/4, or 3/4 of a turn because there are no wrench flats (for the round style oil filter wrenches). The "nut" on a K&N is of limited value. If you want them to go ANYWHERE beyond "firm contact," you either use your bare hand to tighten them as hard as you can, or you use some other means of applying the last little bit of additional force. That's all.

 

K&N filters also offer a anti drainback valve. which i believe to be pretty much useless, unless your using a remote mount filter which it could come in handy there.

 

I think you're right about that. Seeing as the filters have their open ends facing up, it basically renders the anti-drainback valve useless (unnecessary) in this application. I figure K&N just uses that filter base on other applications that may require it. Who knows??