All diesel engines require the additional injection of AdBlue®, which results in the car producing much fewer harmful emissions. You can top it up easily by using the filler neck right next to the fuel tank’s normal neck. A new development in the Octavia RS is that you are not limited to the AdBlue® pumps for cars, as it can now accommodate a fuel nozzle for lorries. As a result, you always have the assurance that you will be able to refuel with ease at any service station.