This package contains textures that replace the default Fuel Truck textures with Phillips 66 Jet Fuel and 100LL Fuel truck textures.  When you place the contained package in your community directory, depending on how your Living World Config is set up, you should randomly see any one or more of several fuel truck configurations for Jet Fuel and 100LL with Polished or white background tanks, as shown in the pictures above. 

I don't know what happens if you have several Fuel Truck replacement textures.