Last week I bought an exmark 48" belt drive. I have only run two 36's and the filter is obviously different. My question is do i put oil on the new 48 filter squeeze it out like i do with the 36's? or do i just let it be. I was only given the operators manuel and parts manuel and by the time i realized i was to far away . He is in the process of sending it to me im just curious to know. thank you. rob.