Fill two five-gallon containers, one with diesel fuel and the other with MIL-L-644, Type P-9
Assemble a shut-off valve and T-fitting to a line from the preservative oil container.
Assemble a second shut-off valve to a line from the diesel fuel container.
Connect line from diesel fuel shut-off valve to preservative oil shut-off valve T-fitting.
Attach a fuel line to the T-fitting and secure other end to engine fuel pump fuel filter inlet.
Open diesel fuel shut-off valve and close preservative oil shut-off valve.