“Wouldn’t diesel fuel have gelled at Antarctic temperatures?”
Likely heaters of some type, although they’d have to run close to non-stop on the coldest days, unless really well insulated too. Then you also have to worry about the fuel lines gelling...and have a way to take care of that.
(I used to be in the winter-hardening business)
I’d think “Prist” would help with the fuel gelling problem.