Time is close for my first oil change on my new 2100. My zero turn has the smaller 26 H.P. Briggs engine. I was at our local Farm and Garden store and noticed that they stock 3 different oil filters for the Briggs engine. One of the filters they stock is yellow in color, as is the filter that came in the Briggs new, they also have a identical filter, however it is black, and last but not least they have a filter black in color however it it about 1 and 1/2 inches longer. There are no catalogues or information as to which filter I should use. Are all Briggs filters the same? For those of you who do your own service, what filter and filter number do you use.