I have Been working on a Kenworth CocaCola and PepsiCola Truck's 1500HP and CocaCola and PepsiCola Trailer's  80,000 litres Holds all fruits and more. The CocaCola Semi Trailer 2
Holds 100,000 litres Loading: wheat rape maize barley manure silage potato sugarBeet grass_windrow chaff forage wheat_windrow barley_windrow Heavy Haulage Trailer 2 Featuring a fast conveyor drivendicharge system. The addition of a "low trailer attacher" enables the combination of the "SIGA Uno" or "SIGA Duo" to be used to tow 2, 3 or more trailers at once.
I JUST GAVE A DIFFERENT LOOK TO THEM AND THEY COST YOU $0.00 TO USE. HAVE Fun Enjoy!
Unpack open the mods zip folder then copy all into your mods folder.
C:\Users\.\Documents\my games\FarmingSimulator2015\mods.Have fun!!!

Credits:
Eagle355th