I think you are refering to which type of diesel.....#1 or #2. I can't recall which, but one or the other is a little bit harder to start..... has a lower Cetane value.
I suppose it depends on how the distributer mixes the fuel. In climates that don't get cold/freeze, they prob run one or the other. In cold climates, it's a mix between 1 & 2. I just can't recall which one is for cold weather use.....
Before winter, I usually "dope" my fuel tanks in the tractor(s) that I'll be using for snow (if I get any). Same w/ the C8000 Ford (3208 Cat).... add some Cetane boost.
/forums/images/graemlins/shocked.gif /forums/images/graemlins/smirk.gif