Using WD-40 for cleaning chains seems to be controversial. I have seen and read arguments both pro and con.
I believe someone on this forum said before that the basic molecular breakdown of WD-40 and Kerosene is pretty much the same? I dont know I could be wrong.
taken from Wikipedia...
Typical uses of WD-40 around the home include:
Stopping squeaks in door hinges and generally freeing up simple mechanical items found around the house, such as door locks
Loosening rusting components, such as nuts and screws, so they can be removed
Spraying on hand tools prior to storage to protect against rust
Cleaning objects affected by grease, caked-on dirt or adhesive residue (such as that left behind by sticky tape); however, its uses in this way are limited around the house because of its unpleasant smell, which tends to linger
Typical use of WD-40 in automotive repair include:
Driving moisture out of the high and low tension electrical components of a motor engine, so that it can start (particularly on cold days). E.g. cleaning and drying the inside of the cap of the ignition distributor.
Loosening nuts and screws
Cleaning car locks
Cleaning rims. Note: WD-40 should not end up on the brake pads or brake disc.
The WD-40 company claims it is safe for use on all motorcycle chains, but recommended cleaning products vary among chain manufacturers. Tsubaki Chain and RK Chain recommend WD-40 to clean or displace water on all types of chains, including sealed ring.
While its uses are many and varied, WD-40 should not be used as a general-purpose lubricant, as it dries very quickly and collects dust. This can result in serious damage to machinery and equipment designed for use with heavy oils when they are lubricated with lightweight WD-40.
Note the comments about motorscooter chains...
Ingredients...
50%: Stoddard solvent (mineral spirits, also commonly known as dry cleaning solvent)
25%: Liquified petroleum gas (presumably as a propellant, carbon dioxide is used now to reduce considerable flammability)
15+%: Mineral oil (light lubricating oil)
10-%: Inert ingredients
