I have to agree with bonehead. We burn a 50/50 kero mix in the winter in all of our diesels because of the gelling issue (additives don't cut it at -40f).
Mileage goes all to hell with the kero mix. Once in a while the snowplow tractor ends up with a tankful of mix when warm weather arrives and will rattle like hell until we run enough to fuel with #2 and reduce the proportion of kero.

Jim

PS - I may be wrong but I believe that "white gas" is rug, I do know that it is not kero