Can you guys recommend a good anti-corrosion spray for my F250? I want to spray it every month or so. I asked the same question on THT and got a lot of different opinions. Most seem to agree on CRC-656, others being Boeshield T-9 or Corrosiox-X. I can get most of these locally. I know Yamaha has a branded lube but the nearest Yamaha dealer is about 50 miles from me. Also, are there any areas on the motor that I shouldnt spray? Thanks! Dom