What is the difference between the JP1 aviation fuel and the JP4 aviation fuel?
Question #64669. Asked by jimmyrussell23.
Last updated Sep 08 2016.
robboy
Answer has 3 votes
Currently Best Answer
robboy 21 year member
941 replies
Answer has 3 votes.
Currently voted the best answer.
The first difference is that JP-1,2 and 3 are obsolete, and JP-4 is almost exclusively used by the military--US Air Force and certain US Army aircraft. Several other differences in Jet Propulsion fuels used in both military and civilian applications can be found here: https://en.wikipedia.org/wiki/Jet_fuel#Military_jet_fuels
Response last updated by CmdrK on Sep 08 2016.
Apr 15 2006, 9:47 PM
robboy
Answer has 2 votes
robboy 21 year member
941 replies
Answer has 2 votes.
Additional differences in the JP-1,2,3 and JP-4 (and current fuels) have to do with adjusting freeze points, economy (mixing naptha and kerosene with them extends availability) and safety precautions such as lowering flashpoints.
https://en.wikipedia.org/wiki/Jet_fuel#Military_jet_fuels