Right now the 2 stations that use Mudflap here are .20 or more higher than a number of other stations in the area. I have had Mudflap save me as much as .80/gal but not now. I have Gasbuddy on my phone right next to the Mudflap app. I check them both any time I buy fuel. One problem with Gasbuddy is that they don't show prices for non-al gas. I run that in all my small engines.