Mercury-Mercruiser 35-8M0205848 Oil Filter This OEM oil filter keeps oil cleaner longer with the unique filtration system that screens particles smaller than 11000th of an inch, The high efficiency design allows for oil to flow at a constant rate to the engine vital points. Thanks to a metal shell that is over 50 thicker than conventional filters, this filter is built to last. It is recommended that you change your fuel filter after every 100 hours of normal use or minimally once per season. App