Ford Mondeo Quiz
Fuel and Refueling

Fuel quality

In this manual: Fuel and Refueling
Introduction — 9Overview — 6Child safety — 5Seat belts — 4Supplemental Restraint System — 8Keys and Remote Controls — 4MyKey — 9Locks — 3Safety — 4Steering wheel — 6Wipers and washers — 4Lighting — 15Windows and mirrors — 7Instrument cluster — 4Information Displays — 3Climate control unit — 9Seats — 10Auxiliary power points — 1Storage Compartments — 4Engine Starting and Stopping — 7Unique Driving Characteristics — 1Fuel and Refueling — 7High-voltage battery — 3Transmission — 1Brakes — 5Traction control — 3Electronic Stability Control — 3Parking Aids — 7Cruise control — 4Driver assistance — 21Vehicle Loading — 1Towing — 3Driving tips — 6Roadside assistance in emergencies — 11Fuses — 3Maintenance — 15Vehicle Cleaning — 6Wheels and Tires — 8Capacities and specifications — 3Audio system — 8SYNC — 7SYNC 2 — 10Appendices — 3
~2min read

Choosing the Correct Fuel

Qualité du carburant

We recommend using regular unleaded gasoline with a pump octane rating of 87.

Some filling stations sell fuel labeled as regular with an octane rating below 87, particularly at high altitudes. Fuels with an octane rating below 87 are not recommended. Premium unleaded gasoline provides better performance, and we recommend it when the vehicle is under heavy load (for example, when fully loaded).

Do not use any fuel that is not recommended. These fuels could cause engine damage that is not covered by the vehicle warranty.

Note: Using a fuel that is not recommended may damage the emissions control system and reduce vehicle performance.

Do not use:

  • Diesel fuel.
  • Fuels based on kerosene or paraffin.
  • Fuel containing more than 15% ethanol or E85 fuel.
  • Fuels containing methanol.
  • Fuels containing metallic additives, including manganese-based compounds.
  • Fuels containing methylcyclopentadienyl manganese tricarbonyl (MMT), an additive that increases the octane rating.
  • Leaded fuel (the use of leaded fuel is prohibited by law).

Using fuels containing metallic compounds such as methylcyclopentadienyl manganese tricarbonyl (commonly known as MMT), which is a manganese-based additive, affects engine performance and the operation of the emissions control system.

It is normal for the engine to occasionally emit slight knocking noises. However, if loud knocking is audible in most driving conditions while you are using fuel with the recommended octane rating, contact an authorized dealer to avoid engine damage.

Test yourself

A quick Ford Mondeo quiz: every answer comes with an explanation and a link to the manual page.