Mainline custom units can be designed and manufactured to suit your requirements. Ute Tanks are for Diesel only (3.1D). Manufactured from 4mm aluminium and are Built to Last. Standard units are available in 250, 300 and 400 Litre units. These are fitted with a 12 Volt pump system which can be connected to a battery or wired into a vehicle. PETROL (3.1A) cannot be carried on New Zealand roads in a ute tank unless the tank has a certification number (TAN#) issued by WorkSafe.