That's wonderful that the EX250R shares filters with a D1200, my wife has a lil Ninja, mabey if I buy in bulk I'll be set for a few years. I would never go more than 3,000 mi without changing the oil in my bikes. I like turning wrenches so its no biggie for me. Since I'm using Amsoil I might buy some Wix filters, cheaper than OEM Kawai ones for the wife's bike. Thanks.