Octane recommendations, Running out of fuel – FORD 2013 Taurus v.2 User Manual

Page 187

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Octane recommendations

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.

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 times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal. With keyless ignition, just start the engine. Crank time
will be longer than usual.

Normally, adding 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.

The service engine soon indicator may come on. For more information
on the service engine soon indicator, refer to

Warning lamps and

indicators

in the

Instrument Cluster

chapter.

87

(R+M)/2 METHOD

Fuel and Refueling

187

2013 Taurus
Owners Guide gf, 2nd Printing
USA

(fus)

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