What is everyone doing besides the normal oil/filter, changing fluids, and greasing zerks? The only three fluids I haven't changed so far (at 27k miles) is power steering (will do a partial change soon), coolant (not touching it until 100k), and trans (probably wait until 50k). I just looked through the owner's manual for my 2012, and it mentions splines on the propeller shaft; which I'm thinking is the drive shaft? Is there anything that a DIY can do here? Anything else that should be addressed?