here's an example - GA I75 S of Macon - a HUGE route for so many between FL and everywhere else... [gasbuddy app]
at least TWO stations just the next exit up are 25cents per gallon less for the same exact diesel...that's $12.50 savings for a single 50 gallon fill up....
versus the 'truck stop' at Loves
take your pick, spend more if you want...