WD-40: What's In it? Not patented; Atlas Missil

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Originally Posted By: Kira
WD-40 is used by equestrians to add a polish and luster to horses hooves.

At he end of season I soak the wheel height adjusting hardware on my lawnmower as these flimsy parts rust like the dickens.

A hood latch spring broke on a friend's Ford (common Ford problem).
The hood closed only to the safety position; not fully closed.
She squirted an entire can of WD-40 under the center of the hood to "free something up".


Did that work?
 
Originally Posted By: HerrStig
Originally Posted By: ebr1190rx
Why would it? Most hand drills are double insulated and oil is used in transformers for both cooling and dielectric potential.
An oil burner company ad used to show a torch extinguished by shoving it into a pail of heating oil. (Don't try this at home).


Why does a cigarette butt go out and not cause a fire or explosion when dropped onto/into a pail of gasoline?
 
Originally Posted By: BreakerBreaker
Originally Posted By: HerrStig
Originally Posted By: ebr1190rx
Why would it? Most hand drills are double insulated and oil is used in transformers for both cooling and dielectric potential.
An oil burner company ad used to show a torch extinguished by shoving it into a pail of heating oil. (Don't try this at home).


Why does a cigarette butt go out and not cause a fire or explosion when dropped onto/into a pail of gasoline?


Not enough heat and too rich in fuel to combust. Think of it like an engine. Too much or too little fuel = no boom. Not enough heat from the spark plug = no boom. Combine the two and you get even more failure to go boom.

A cig has enough heat from the ember to ignite vapors, which will then propagate to the fuel as they generate more heat. Similar to sticking a torch into a drum of oil. Unless the oil is VERY hot, there just isn't enough heat to fuel mass to cause a fire.
 
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