Yeah, but that fuel is allso needed to power the electric fence posts...The "maintenance" on the turrets/generator is the ammo/fuel that goes in it.
The bullets are the maintenance part for turrets.I can understand blade traps and spikes traps because zombies are getting against those.
But the shotgun/auto turrets don't require any maintenance, even when they have shot 1000's of bullets. But that would be the same with a generator. Shouldn't that need some maintenance if it's running for weeks ingame?