Ford Taurus Owners Manual: Fuel quality

Note: Use of any fuel other than those recommended may cause powertrain damage and a loss of vehicle performance; repairs may not be covered under warranty.

Choosing the Right Fuel (Gasoline Engines)

Use only UNLEADED gasoline or UNLEADED gasoline blended with a maximum of 15% ethanol in your gasoline vehicle. If your vehicle is a Flex Fuel Vehicle (FFV), it will have a yellow bezel placed over the fuel fill inlet.

Do not use: Fuels containing more than 15% ethanol or E-85 fuel.

Fuels containing methanol.

Fuels containing metallic based additives, including manganese-based compounds.

Fuels containing the octane booster additive, methylcyclopentadienyl manganese tricarbonyl (MMT).

Leaded-fuel (The use of leaded fuel is prohibited by law).

Note: Use of any fuel other than recommended fuel can cause powertrain damage, impair the emission control system or cause loss of vehicle performance. Any damage to vehicle that is caused by use of fuel not recommended will not be covered under warranty.

Choosing the Right Fuel With a Flex Fuel Vehicle (If Equipped)

Use only UNLEADED gasoline or UNLEADED gasoline blended with a maximum of 85% ethanol (E-85) in your Flex Fuel Vehicle (FFV).

If your vehicle is flex fuel capable, it will have a yellow bezel placed over the fuel fill inlet.

Do not use: Fuels containing more than 85% ethanol or E-100 fuel.

Fuels containing methanol.

Fuels containing metallic based additives, including manganese-based compounds.

Fuels containing the octane booster additive, methylcyclopentadienyl manganese tricarbonyl (MMT).

Leaded-fuel (The use of leaded fuel is prohibited by law).

Use of any fuel other than recommended fuel can cause powertrain damage, impair the emission control system or cause loss of vehicle performance. Any damage to a vehicle that is caused by use of fuel not recommended will not be covered under warranty.

Octane recommendations

 3.5L V6 engine


3.5L V6 engine

Regular unleaded gasoline with a pump (R+M)/2 octane rating of 87 is recommended. Some stations offer fuels posted as Regular with an octane rating below 87, particularly in high altitude areas. Fuels with octane levels below 87 are not recommended.

3.5L V6 SHO/2.0L EcoBoost engines

Regular unleaded gasoline with a pump (R+M)/2 octane rating of 87 is recommended. Some stations offer fuels posted as Regular with an octane rating below 87, particularly in high altitude areas. Fuels with octane levels below 87 are not recommended. Premium fuel will provide improved performance and is recommended for severe duty usage such as trailer tow.

Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily while you are using fuel with the recommended octane rating, see your authorized dealer to prevent any engine damage.

    Safety precautions
    WARNING: Do not overfill the fuel tank. The pressure in an overfilled tank may cause leakage and lead to fuel spray and fire. WARNING: The fuel system may be under pressure. If you hear a hissing s ...

    Running out of fuel
    Avoid running out of fuel because this situation may have an adverse effect on powertrain components. If you have run out of fuel: You may need to cycle the ignition from off to on several time ...

    Other materials:

    Stability Control
    PRINCIPLES OF OPERATION WARNING: Vehicle modifications involving braking system, aftermarket roof racks, suspension, steering system, tire construction and wheel or tire size may change the handling characteristics of your vehicle and may adversely affect the performance of the AdvanceTrac sys ...

    Floor mats
    WARNING: Always use floor mats that are designed to fit the foot well of your vehicle, leaving the pedal area unobstructed, and which can be firmly secured to retention posts so that they cannot slip out of position and interfere with the pedals or impair safe operation of your vehicle in othe ...

    Engine coolant check
    Checking the Engine Coolant The concentration and level of engine coolant should be checked at the intervals listed in Scheduled Maintenance Information. Note: Make sure that the level is at the FULL COLD level or within the COLD FILL RANGE in the coolant reservoir. Note: Coolant expands wh ...