n run in your tractor, but to put the fuel in an airplane, like an F-22 or an F-16, that meets military specs is what we have been working on.??? Fuels that run aircraft such as the F-22 need ???energy density??? and a ???physical density??? in a jet fuel. ???Biodiesel has trouble in the cold,??? Baxley said. ???What we are making here can meet the density specifications for future military-type v