The Donaldson Clean Fuel Carts offer offer bulk diesel filtration in a highly portable and self-contained system to help protect from contamination that can cause damage to HPCR fuel injection systems. These easy-to-operate carts are available in both AC and DC models, so operators of diesel equipment can be confident in the quality of the fuel they’re pumping, according to the company. The Clean Fuel Carts are designed to filter diesel fuel to an ISO 4406 cleanliness level of 14/13/11, which is at least 16 times cleaner than the requirements of the Worldwide Fuel Charter.