Eco mode monitors driving characteristics such as gear shift and speed and adjusts the engine and transmission performance to help maximize fuel efficiency. Flex fuel vehicles can run on regular unleaded gasoline at any octane rating such as 85878991 and 93. 2018 Ford F 150 With 3 Suspension 22 Fuel Wheels And Toyo R T Tires Custom Trucks Lifted Trucks Truck Lift Lifted Ford Trucks Ford Trucks Custom Trucks When I saw the fuel recommendations I went searching came up with. . 2018 Ford F150 2WD FFV BASE PAYLOAD LT TIRE 6 cyl 33 L Automatic S6 Regular Gasoline. The Second Generation of the 27L EcoBoost Engine. Ford Motor Company Ford is recalling certain 2018 Ford Expedition F-150 and Lincoln Navigator vehicles equipped with 35L GTDI V6 engines. Look closely and you can even see the manufacturing QR code on each of the pistons. But i will state that filling the entire tank of E85 is worthless the truck cant use all of the oc...