[Trailer Trash 2]

I have noticed a slight decline in my millage when I used BIO but not a big change, but in response like hitting a hill for a hard pull it seems to lack the UMPH that #2 gives. I guess I'll by pass the stations that sell Bio and look for stations that sell #2. It seems that Bio can dislodge impurities from the fuel system and plug up the fuel filters, that don't sound like something I want to worry about when traveling, I have enough to worry about without adding another potential problem. thanks for all the great feedback on the topic.
Don