If you were buying it at iron pony you would feel like a real tool, they want like $14 a quart there. UDF sells it for about 6.50 if me remembers right. Damn, now my secret it out... If anyone was wondering what the absolute best filter is, its the ams oil Eao. I know a guy who is a lubrication engineer (shitty dont get excited) He said the oil was more clean after ran through that filter than it is from the bottle... sounds silly, but it is the truth. The filters are a little nore expensive, but if youre like me, you dont mind cuz you like your motor