Ford Mustang (2005-2014) 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
Use only unleaded fuel or unleaded fuel blended with a maximum of 15% ethanol. Do not use fuel ethanol (E85), diesel fuel, fuel- methanol, leaded fuel or any other fuel because it could damage or impair the emission control system.
Octane Recommendations
• 3.7L 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. Do not use
fuels with octane
posted on pump below 87.
• 5.0L V8 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. Do not use fuels with
octane posted on pump below 87.
Premium fuel will provide improved performance and is recommended for severe duty usage, such as trailer tow.
• For Shelby GT500 octane requirements, see the Shelby GT500
Supplement.
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 soun ...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 ...Other materials:
Pinpoint Test D: LFC 15/DTC B 1887- Driver Air Bag Circuit Shorted to
Ground
Normal Operation
The restraints control module (RCM) checks for driver air bag circuit
shorts to ground by monitoring the
voltage of circuits 614 (GY/OG) and 615 (GY/WH) at pins 3 and 4. If the RCM
detects a short to
ground on either of these pins, it w ...
Valve - Seat Inspection
Valve and Seat Refacing Measurements
CAUTION: After grinding valves or valve seats, check valve
clearance.
1. Check the valve head and seat.
Check valve angles.
Check margin width.
Refer to the appropriate section in Group 303 for the procedure.
...
Fuel Filter
Removal
WARNING: Fuel supply lines on all vehicles equipped with fuel injected
engines will
remain pressurized for long periods of time after engine shutdown. Fuel system
pressure must
be relieved prior to fuel system service to prevent possible personal inj ...