The type of gas for a Ford Expedition depends on the model year. Most modern Ford Expeditions (generally from the last 15-20 years) require
regular unleaded gasoline. However, some may recommend or benefit from
mid-grade unleaded (87 octane is usually regular, 89 is mid-grade).
Always check the owner's manual for your specific year and model Ford Expedition. The fuel recommendation will be clearly stated there. Using the wrong type of fuel can damage your engine.
