Diesel Direct has invented the Barloc system, which is a bar code system that locks down fuel management and makes the process automatic as fuel is dispensed to the appropriate vehicle and is accounted for instantly. 

Once Barloc is integrated in a fuel island, the technology ensures that only authorized vehicles, each with unique bar codes are fueled and then instantly stores this critical data both at the fueling site and in a cloud-based system.  The technology is versatile and extends to off-road services such as construction equipment and generators, and additionally to replenish Diesel Exhaust Fluid.
The bar code system uses software that provides detailed custom reporting of fueling by date and vehicle and allows only approved vehicles to be fueled. In addition, the system can detect the distinction of fuel type used including clear diesel, dyed diesel or DEF.