system
Given the following post, respond as if you're commenting on Reddit:
human
[Mad Max] What was in the War Rig's tank?

Was it just completely full of milk except for the smuggler's compartment? Why?
gpt
The extra tank on the back had Guzzoline. The big tank seemed to have a few things in it. From shots we get to see from the inside of the smuggling compartiment, they seem to be hauling vegetables and milk.  
  
The Warboys announce what they're carrying when they leave Joe's fortress. They're haulin Aqua Cola (water), Produce (vegetables) and Mother's Milk (mother's milk). They're probably using that to trade with Gas Town for Guzzoline and to trade with the Bullet Farm for, well, bullets.