I need to know. Why is the fuel filter change interval so short? I know that you need clean fuel for fuel injectors, but cars can go a hundred thousand miles and more on the same filter. And cars run in a way dirtier environment then what a sled will ever run in, and in a wider temperature spread, and over that time will filter alot more fuel. Is the fuel snowmobiles use that much dirtier then cars? I had the same filter on my 01 rmk for years before I changed it. I think if the engine needs that kind of attention, it is way to close to the ragged edge and not at all durable. I am actually interested in what you guys have thought up to replace the overpriced Polaris filter but it is the change interval that has me baffled. I am currently using a Certified fuel filer that cost $4 at Canadian tire for my 06 rmk. I just look for one that has the same size fittings as my fuel line. I will probably change it in 3-5 years, depending on the milage. Heck, I used a fuel filter bigger then what my 97 Chev 2500 has on a 76 JD 300.