winter tires FORD MUSTANG 2012 5.G Shelby GT500 Supplement Manual

Retighten the lug nuts to the specified torque at 500 miles (800 km)
after any wheel disturbance (tire rotation, changing a flat tire, wheel
removal, etc.).
Bolt size Wheel lug nut torque*
ft-lb N•m
12x 20 100 135
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
TIRE INFORMATION
Your SVT vehicle is equipped with unique wheels and tires designed to
enhance performance. To continue providing this performance, extra
care must be taken when operating and maintaining your vehicle.
TiresP255/40ZR-19 front, P285/35ZR-19 rear
(standard)
P265/40-19 front, P285/35-20 rear tires
(optional)
Wheels19 in. x 9.5 in. forged aluminum wheels
(standard)
19in.x9.5in.front,20in.x9.5in.rear
forged aluminum wheels (optional)
Tires
Your SVT vehicle is equipped with low profile, high performance tires
that are designed to optimize the driving dynamics you expect in a SVT
vehicle. These tires are not optimized for off-road or winter (snow or
cold weather) performance, and their ride, noise and wear characteristics
are different than non-performance tires. Also, because of their lower
profile, the tires are more susceptible to damage due to potholes and
rough roads. To ensure that your tires perform as intended, it is
important that you maintain your tires properly:
•The Shelby GT500 original equipment tires are optimized for
performance in both wet and dry conditions. Ford does not
recommend using the original equipment tires when temperatures
drop to approximately 40°F (5°C) or below (depending on tire wear
and environmental conditions) or in snow/ice conditions.
Wheels and Tires
15
2012 05+ Mustang(197)
Supplement, 1st Printing
USA(fus)

WARNING:For vehicles equipped with optional performance
package tires (P265/40-19 front, P285/35-20 rear), only replace
wheels and tires with the EXACT original brand, size and construction
tire with which your vehicle was originally equipped. Use of any other
wheel/tire combinations, even with identical size ratings, may result in
insufficient running clearances, tire rubbing and eventual puncture.
Loss of tire pressure could lead to a loss of vehicle control leading to
serious injury or death.
Summer tires
The Shelby GT500 Performance Package is equipped with D.O.T.
approved ultra high performance summer tires with track capability. The
rubber compounds used in these tires lose flexibility and may develop
surface cracks in the tread area at temperatures below 20°F (-7°C).
Always store your tires indoors at temperatures above 20°F (-7°C). If the
tires have been subjected to 20°F (-7°C) or less, warm them in a heated
space to at least 40°F (5°C) for at least 24 hours before installing them
on a vehicle, or moving the vehicle with the tires installed, or checking
tire inflation. Do not place tires near heaters or heating devices used to
warm the room where the tires are stored. Do not apply heat or blow
heated air directly on the tires. Always inspect the tires after storage
periods and before use as outlined in the owner’s guide. Ford does not
recommend using these high performance summer tires when
temperatures drop to approximately 40°F (5°C) or below, or in snow/ice
conditions.
Winter driving
The original equipment tires on your SVT vehicle are designed for
maximum performance in dry and wet summer conditions. They are not
designed for winter use on ice or snow and cannot be used with snow
chains. If you will be operating your vehicle in these conditions, winter
or all-season tires must be used.
•Use winter tires with a “V” speed rating and a 93 load index or higher
for all models. You may also use P255/45R-18 winter tires with a “V”
speed rating and a 93 load index and 18 in. wheels from the
2007-2010 model year Shelby GT500. Using these wheels will ensure
adequate brake and suspension clearance.
Wheels and Tires
17
2012 05+ Mustang(197)
Supplement, 1st Printing
USA(fus)

•Do not use a winter tire with less than a “V” speed rating, and even
with clear, dry driving conditions do not operate your vehicle above
posted speed limits while using winter tires. Never perform high speed
driving with winter tires.
Please call the Ford Performance Info Center at 1-800-FORD-SVT
(367-3788) for specific winter tire recommendations.
Tire rotation
Because your vehicle is equipped with unique larger tires on the rear
wheels, you can only rotate the tires side to side. You must not rotate
tires in a crisscross pattern or front to rear. If you notice that the tires
wear unevenly, have them checked.
Note:The optional performance package tires (P265/40-19 front,
P285/35-20 rear) are directional. Tire rotation is not recommended for
directional tires.
The tires on your Shelby GT500 should be rotated every 5,000 miles
(8,000 km). This will help your tires wear more evenly, providing better
tire performance and longer tire life.
•Tire rotation (front tires at the
top of the diagram)
Sometimes irregular tire wear can be corrected by rotating the tires.
Note:If your tires show uneven wear, ask an authorized dealer to check
for and correct any wheel misalignment, tire imbalance or mechanical
problem involved before tire rotation.
Note:After having your tires rotated, inflation pressure must be checked
and adjusted to the vehicle requirements.
Wheels and Tires
18
2012 05+ Mustang(197)
Supplement, 1st Printing
USA(fus)