Originally Posted by
cale
I see little benefit to using a petroleum-based solvent, such as WD-40. It is not a weather protectant, it doesn't solve any problems that a carefully placed drop of lubrication can't solve, and it really only benefits the makers of WD 40 who don't discourage its liberal use as a parts cleaner.
I often spray it on the chain after wet rides and the use shop towels to wipe the chain. It's original purpose was to displace water and it seems to work well. I add heavier lube later. If you just let the chain dry on its own it's possible for rust to show up.