I remove my chains and clean them in a ultrasonic cleaner with Simple Green and water. I rinse the chain in that evil water and either sun dry or oven dry it. Put it back on the bike and lube it with 1pt chain saw bar oil to 4 pts. mineral spirits. Repeat every 800 miles.
I have gotten over 19,000 miles on my tourer with fenders and over 16,000 miles on my other road bike without fenders.