See #744

Models/UserConfig.cs

@@ -23,6 +23,7 @@
         public bool AutomaticDecimalFormat { get; set; }
         public string PreferredGasUnit { get; set; } = string.Empty;
         public string PreferredGasMileageUnit { get; set; } = string.Empty;
+        public bool UseUnitForFuelCost { get; set; }
         public List<UserColumnPreference> UserColumnPreferences { get; set; } = new List<UserColumnPreference>();
         public ReminderUrgencyConfig ReminderUrgencyConfig { get; set; } = new ReminderUrgencyConfig();
         public string UserNameHash { get; set; }