Page 17 - Propane Vehicle Essentials and Safety Practices

How Propane Compares to Gasoline and Diesel How Propane Compares to Gasoline and Diesel
Ignition and Flammability Weight and Energy Comparison

Propane Gasoline Diesel
Propane Gasoline Diesel
Ignition Temperature 940-1120 F 580 F 410 F Weight 4.24 lbs. 6 lbs. 7 lbs.
°
°
°
Flammability Range 2.2-9.6% 1.4-7.7% .6-7.5% BTU Content/ 84,250 125,000 140,000
Gallon

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How Propane Compares to Gasoline and Diesel What Is Octane?
Octane and Cetane Rating
• Rating for the ability to resist detonation
o The higher the number, the higher the temperature required to
Propane Gasoline Diesel ignite the fuel

Octane Rating ~102 85-94 N/A
93 octane gasoline is
Cetane Rating <0 N/A 40-60 harder to ignite than 87
octane

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