The Armored Tiger Tanker is used by the People's Liberation Army as a fuel or oil transport. Presumably, the PLA will never send these trucks into enemy territory without armed escort, as the truck's fuel tank is an explosive target that would get set off by stray enemy rockets. Additionally, and unlike the Allied Nations' Emissary Tanker counterpart, the Armored Tiger is unarmed and would not be able to defend itself alone.
From a gameplay point of view, the truck is never seen in the game transporting fuel, and can only be found in one location: a small PLA outpost just north of Solano's Bunker. At that location, the truck can be entered and driven, airlifted by helicopter to another location in Venezuela, or Ewan Devlin can be called in to steal it and grant the player 500 Fuel.
The Armored Tiger Tanker is based on the Shaanqi SX2150.