My 2012 Ford explorer will not let me insert the gas nozzle in to the tank? How do I fix this?
Sounds like she drove up to the wrong pump. Diesel and Gasoline pump nozzles are different diameter so you don't put in the wrong fuel.
Tom is correct - for many years stations have had different nozzles for gas and diesel. This safety feature prevented your wife from accidentally making a very costly mistake.
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