Nuke cars/tank cannot use nuke fuel and burns through normal fuel way to fast. I am using Krastorio mod so I don't know if that effecting it, but is there a fix for that?

?
The nuclear car and tank should be using only uranium fuel cells.
It looks like Krastorio is changing the vehicle accepted fuel type.

doh! Any chance for an update that will work with Krastorio?

You can ask Krastorio mod owners about the same :-)
Frankly speaking RA is softly conflicting with Krastorio in almost everything (armor, shields, portable generators, vehicles, etc) - a mess of co-existing objects. It's better to use only one of them. RA is for playing vs Rampant New Enemies. Krastorio is Krastorio game experience, it's not about fighting stronger enemies, there is some warfare fun in the beginning, but completely reduced on later game stages. You can play Krastorio with Rampant (without new enemies, or with small max tier settings and reduced factions number).