Are motor oils flammable?

Motor oils are not highly flammable substances. While they do have the potential to catch fire under certain conditions, their flammability is relatively low compared to other substances such as gasoline or alcohol.

Motor oils are composed of hydrocarbons, which are organic compounds made up of carbon and hydrogen atoms. These molecules are not as volatile as the molecules found in more flammable substances, making motor oil less likely to ignite easily.

In order for motor oil to catch fire, it must be exposed to a heat source with a temperature high enough to cause it to vaporize and reach its flash point. The flash point is the temperature at which a substance gives off enough vapor to ignite in the presence of an ignition source. For most motor oils, this temperature is relatively high, making them less susceptible to catching fire accidentally. This is why Motor oils are often considered dangerous goods for transportation outside Japan. Flammability is low compared to many other materials and they are fundamentally manufactured to be resistant to heat or fire.

Flash point of motor oils: Usually somewhere between 200-300 degrees (Celsius)

It is important to handle motor oils with care and keep them away from sources of heat or open flames to prevent any potential fire hazards. While motor oils are not completely flammable, their low flammability should not be a cause for major concern as long as they are stored and used properly.