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<p>[QUOTE=&quot;Aminal, post: 4039601, member: 129351&quot;]Flammable and combustible is splitting hairs over the 140 degree flash point at which the differentiation is made. Safety and compliance folks love to do that and argue that you have mis-labled something (OSHA and MSHA are notorious for this). Still catches fire fairly easily and supports combustion in a very hot way no matter how you split the hair. Cornstarch, grain dust, powdered sugar will cause a hell big boom. Google what happened at Dixie Crystal in Savannah, GA or some grain elevator explosions. That stuff has a helluva high flash point but it is such a fine particle and there are so many, it might as well be hair spray or other aerosol products. Diesel will still ignite very easily with a match or cigarette lighter. All you have to do is atomize it to a fine mist. Some really bad truck fires (burned to the frame) had nothing to with a crash. It was a vaporized stream of a petroleum product passing through a pressurized system with a pin hole leak that atomized it onto a hot surface like an exhaust manifold or turbo. Starts to cook on that hot surface til it reaches it&#039;s flashpoint. Then you got a fire - an extra hot one and a steady spray of atomized (diesel, oil, whatever) liquid that now (since we have open flame and it can act in the manner of anything that will burn like a dust) it like spraying an aerosol on a fire - only a really, really hot one (as Witching Hour pointed out about BTU), so now it&#039;s cooking MORE petroleum based products. And you&#039;re driving (flames driven back and down by the wind under the hood; smoke rolling back and dissipating fast cause your going 65) so when you finally get to see it, it&#039;s honking hot when you open the hood with a little ABC extinguisher in your hand and flood it with fresh oxygen.</p><p><br /></p><p>Forget about it. Pop the pin and squirt it just to say you did but it ain&#039;t gonna touch it. Get away. Bad battery connections can do it too. There is some serious welding unit current pumping though the electrical in a direct short on truck batteries and they&#039;ll arc a fire which then burns through something that causes something to shift and all the gunk and goo on the lower engine starts cooking which then starts the afore mentioned process.</p><p><br /></p><p>Just something to keep in mind when we just kick the tires on a pre-trip. Being guilty of that myself I have no room to slam anyone else that&#039;s done it. Oh, and no; I&#039;m not standing in either wading pool, but I will say this: The gasoline guy&#039;s gonna go up with a big whoosh and the match will PROBABLY go out in the diesel. I ain&#039;t risking either though. I&#039;ll stand by and video it for YouTube. LOL.</p><p><br /></p><p>EDIT: I&#039;d listen to what Witching Hour has to say about things involving engines and what lines carry what to where and he can probably elaborate on my dumb driver stuff about how they can spray what on what a whole lot better than I can. But the general concept is atomized products with a higher flashpoint than gasoline burning like they were very low flashpoint products and please: no stupid experiments at home.[/QUOTE]</p><p><br /></p>

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