Like J Shocik said if you are in a cold climate area the diesel is already blended for winter. At the pipeline where we load, if the load is staying in the valley we load # 2. If the load is going over the mountain to the eastern side of oregon we blend #1 which is kerosene with #2. If you are in doubt if the fuel you are buying ask at the station. If the attendant isn't sure ask who they're supplier is. 
