I was in Chicago recently and Diesel was much cheaper than most 87 octane. In Kentucky about a week ago and it was about the same price as 87 octane. Minneapolis, about between mid grade and premium. Out here in the West, Diesel is way more expensive than 92 octane. Seattle, up to 45 cents more expensive per gallon. Central Oregon, 30 cents more expensive than 87. Central Valley Cali about 25 cents more expensive. Whats it like in your area? And why the huge swings in price difference?