Ford 2011 F-150 v.2 Manuel d'utilisateur télécharger pdf (Page 394)

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 for either engine. 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.

FFV engine (if equipped)

If your vehicle is flex fuel capable, it is designed to use Fuel Ethanol

(Ed75–Ed85), “Regular” unleaded gasoline or any mixture of the two

fuels.

Use of other fuels such as Fuel Methanol may cause powertrain

damage, a loss of vehicle performance, and your warranty may be

invalidated.

It is best not to alternate repeatedly between gasoline and E85. If you do

switch fuels, it is recommended that you add as much fuel as

possible—at least half a tank. Do not add less than five gallons (18.9L)

when refueling. You should drive the vehicle immediately after refueling

for at least 5 miles (8 km) to allow the vehicle to adapt to the change in

ethanol concentration.

If you exclusively use E85 fuel, it is recommended to fill the fuel tank

with regular unleaded gasoline at each scheduled oil change.

Fuel quality

Unleaded gasoline engines

If you experience starting, rough idle or hesitation driveability problems

during a cold start, try a different brand of “Regular” unleaded gasoline.

“Premium” unleaded gasoline is not recommended for vehicles designed

to use “Regular” unleaded gasoline because it may cause these problems

to become more pronounced. If the problems persist, see your

authorized dealer.

FFV engines

If you experience starting, rough idle or hesitation driveability problems

during a cold start, try a different brand of E85 fuel. If the driveability

problems continue, fill the vehicle with regular unleaded gasoline and

drive vehicle normally until gasoline is used. See your authorized dealer

if the problem persists.

(R+M)/2 METHOD

Maintenance and Specifications

394

2011 F-150 (f12)

Owners Guide, 2nd Printing

USA (fus)

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Ford 2011 F-150 v.2 Manuel d'utilisateur Page 394

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