I once heard someone say M ten zero nine ..so I adapted that for me ..however : make sure you put 2 good batteries in, with lousy batteries electrical gremlins are not far away! , then replace all filters & fluids, service the Hubs, check the Driveshafts etc. lube everything, clean the connections on the bus bar on the firewall where the big cables go. If it doesnt fire right up even in - degrees something is wrong! , dont mind to ask any questions here, were all here to help
For lnjection pump lubrication I pour some 2stroke oil into the tank before filling the Diesel in, not much just a medium glass ..roughly
doing the doghead relay mod is strongly recommended, you can ignore it but dont blame us when your CUCV burns down due to a stuck starter relay...
oh and welcome from southern Germany