Anyone know of an oil/filter change deal with fast fit boys

[rswift]

Just sold my Wifes old 306 Diesel to a very nice chap and his son. As part of the deal I offered to change oil & filter, happy to do this but won't be until Sunday. If I get it done sooner .. i.e. by the Mrs taking it to a 'while you wait' please, we can have it gone and cash in the bank by Sat, plus I think it can sometimes work out cheaper than buying the bits.