Originally Posted By: Quattro Pete
For some reason the service manual just says to use heavy engine oil and specifically advises against the use of dedicated "chain lube" products. Hmm...
That's the RIGHT way to do it, IMHO, but not the convenient / lazy man's way. You might get your hands dirty doing it this way.
I first cleaned layers of caked on road crud and aerosol chain lube from the chain on my bike (it was a mess, that's why I hate spray chain lubes) then I applied gear oil to it. Apply it to a warm chain if possible and let it sit a while, then wipe off the excess. Some will fly off and oil up the tire a little, but that doesn't bother me.
IMHO, spray lubes are for people that don't like to to apply oil every 300 miles. All you need to do is prevent rust on the outside. The chains are mostly O ring sealed with grease inside them.