I was just advised of a "deal" on the M1 251a on Amazon... TWENTY FIVE BUCKS! Who are they kidding.---- a DEAL? My local Walmart won't even stock the filter because of the price (they say) although they have in stock just about every other Mobil 1 filter on the shelf. I'm sure it's a good filter and, having 2 V6 Camry's which take that cartridge I would like to use a good one, but 25 bucks????? How much better can it be than, say, the top end Fram? Makes me suspect there's a bit of BS in the whole Mobil 1 filter lineup.