i went today and ordered almost everything in the new ktm catalog for my 505sx. i also needed oil and oil filter. i bought the motorex 10w50 full synthetic. as for the filter, they are expected 12-1-08. WTF!! the filter is a first one they make of that size. it is not shared. so i have to reuse my oil filter and just change the oil. just a heads up to you guys.