Correct me if I missed that someone might have mention the differences between regular unleaded gas and white gas. The biggest difference becomes apparent in really cold weather I'm talking about -0 and below, regular gas will tend to gels up more at these extreme temps then white gas.  I learned this the hard way while winter camping a few years back, coleman stove wouldn't light, chain saw wouldn't start bought fuel and chain saw had to be pre-warmed up in order to operate correctly. Don't ask me why I like camping out in that extreme low temps (record low of -37), fire starters won't even burn at that temp. I will only use white gas in my coleman stove and a little in the chain saw during winter camping trips.

Happy camping :)

//Windsailor