I plan to use a generator on a controlled as needed basis for running my well pump when I am using our washing machine or when I need to use other electrical appliances. So I decided on propane as one of my two methods of generating electricity.
Propane runs cleaner than gasoline, causes less wear on the engine and propane stores much longer.
The disadvantage is there is a 10 percent loss in power and the engine is a little more difficult to start. It weights 230 pounds and is portable so I can use at home, at a remote site or to help others on location. As to diesel fuel, I was instructed by a research and development scientists with a major petroleum company to use only and metal enclosures and try to keep them cool. Plastic was the worst thing to store any fuel in. I was told to leave a 10 percent head space for expansion and contraction and to install a water filter on my generator intake line because water will be my biggest enemy.