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**herozeroh rolled image**Yeah... diesel is NOT capable of being EASILY ignited or burning QUICKLY.

Prior research suggests that people misunderstand the meanings of the words Combustible and Flammable (Main, Frantz, & Rhoades, 1993). According to the National Fire Protection Association (NFPA), Combustible substances are those with a flash point of 100 to 150 degrees Fahrenheit. Substances classified as Flammable have flash point temperatures between 20 and 100 degrees Fahrenheit.

Thus from the standard/regulatory definitions, Flammable presents a greater fire hazard than Combustible. However, research by Main et al. (1993) suggests that people are more likely to believe that Combustible connotes greater hazard than Flammable.

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en.wikipedia.org/wiki/Flash_point
Just because the potatoe caught fire from this little thought experiment, does not mean he stayed on fire. The very few fumes that would be present (there was ice on the ground right?) would have flashed off and the rest of the diesel would not have stayed ignited.