To add a new Fuel right click on the Fuel container and select Add Fuel from the popup menu. Alternatively you can select Add Fuel from the New menu. This will bring up the "Add/Modify Fuel" dialog shown below:
You must enter a name for every Fuel type. The Manufacturer and Model fields can be filled in with any information you would like. You may also enter the Nitro and Oil content if you so desire. You may also add any notes.
Click Save to create the new fuel type or Cancel to abort.