Regular unleaded is $3.54 and diesel is anywhere from $4.97 to $5.06 in my part of Oklahoma. When traveling for work I try to avoid fueling up in Illinois and Indiana I make sure I top my Nissan off before I enter either of those States I can't make it through both States without needing fuel, but I get darn close, I usually put $20 in it to get to a State that's cheaper then top it off again.