Home Slickdeals Select Amex Cardholders Offer: Next 2 Gas Fill-ups w/ Upside App $0.35... Slickdeals Select Amex Cardholders Offer: Next 2 Gas Fill-ups w/ Upside App $0.35 Off/Gallon (Valid thru 3/31/23) By ARCOM - 11 January 2023 19 0 SHARE Facebook Twitter Go to the deal page: Select Amex Cardholders Offer: Next 2 Gas Fill-ups w/ Upside App $0.35 Off/Gallon (Valid thru 3/31/23)