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Technical Specifications

Which Has a Higher Autoignition Point, Gasoline or Diesel

Gasoline has a higher ignition point than diesel, largely due to its high volatility. Its flash point is notably low, approximately 28 degrees Celsius.

a gasoline tanker caught fire
The flash point is defined as the temperature at which oil, upon reaching a certain heat and being exposed to an open flame, ignites momentarily. The auto-ignition point refers to the temperature where oil ignites upon contacting enough air (oxygen).

Typically, a lower flash point correlates with a higher auto-ignition point. Hence, gasoline’s flash point is lower than diesel’s, but its auto-ignition point is higher.



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