Hi Bill,
Wikipedia confirms your comment.
"WD-40 has had its propellant changed from propane to carbon dioxide."
Many listers have been emailing, suggesting WD-40 be used to start diesels. I
remember someone years ago suggested using WD-40 to stop a runaway Diesel. I
heaven't tried either method but think there may be truth in both points of
view.
Maybe a short (1/2 second) burst can improve combustion for starting?
while a long fogging spray displaces enough oxygen to end combustion?
Chuck
Resolute
1990 C&C 34R
Atlantic City, NJ
----- Original Message -----
Wiki:
". . . A propellant (originally a low-molecular weight hydrocarbon, now carbon
dioxide) provides gas pressure in the can to force the liquid through the spray
nozzle, then evaporates away.
Formulation
WD-40's formula is a trade secret . The product is not patented to avoid
completely disclosing its ingredients. [ 3 ] [ 6 ] WD-40's main ingredients,
according to U.S. Material Safety Data Sheet information, are:
• 51% Stoddard solvent
• 25% liquefied petroleum gas (presumably as a propellant; carbon dioxide
is now used instead to reduce WD-40's considerable flammability)
• 15+% mineral oil (light lubricating oil)
• 10-% inert ingredients"
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