I stopped at a truck stop today. The diesel pumps in the car lanes had #2 diesel and for 6 cents more a gallon there was premium diesel. I have always used #2 diesel. What is premium diesel?
Considering a diesel engine is capable of running on vegetable oil, or old McDonald's French Fry grease, I'm not paying the extra for this. The price of diesel fuel is 50-75 cents higher than Regular gasoline. I think I'm already paying enough.