WARNING:When a wheel is installed, always remove any
corrosion, dirt or foreign materials present on the mounting
surfaces of the wheel or the surface of the wheel hub, brake drum or
brake disc that contacts the wheel. Ensure that any fasteners that
attach the rotor to the hub are secured so they do not interfere with
the mounting surfaces of the wheel. Installing wheels without correct
metal-to-metal contact at the wheel mounting surfaces can cause the
wheel nuts to loosen and the wheel to come off while the vehicle is in
motion, resulting in loss of control.
IMPORTANT TIRE INFORMATION
Your 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.
Wheels and tires
Boss30219in.x9.0in.front,19in.x9.5in.rear
cast aluminum wheels
255/40ZR19 front, 285/35ZR19 rear tires
Boss302 with
Laguna Seca
Package19 in. x 9.0 in. front, 19 in. x 10.0 in. rear
lightweight cast aluminum wheels
255/40ZR19 front, 285/35ZR19 rear tires
(ultra high performance)
Tires
Your Boss302 is equipped with low profile, high performance tires that
are designed to optimize the car’s driving dynamics. 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 Boss302 and Boss302 with Laguna Seca Package original
equipment tires are optimized for maximum steering and handling
performance. Ford does not recommend using these tires in cold
temperatures of approximately 40°F (5°C) and below (depending on
tire, surface and weather conditions). See your Ford dealer for
recommended tires in these conditions.
Tire Information
23
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus) 
•When replacing tires, the only way to ensure original performance is
to use the original equipment tire. If a different tire is used, it should
be the same size, speed rating and load rating and be replaced as a set
of four. Never mix tire brands.
WARNING:Snow tires must be the same size, load index, speed
rating as those originally provided by Ford. Use of any tire or
wheel not recommended by Ford can affect the safety and
performance of your vehicle, which could result in an increased risk of
loss of vehicle control, vehicle rollover, personal injury and death.
Additionally, the use of non-recommended tires and wheels could
cause steering, suspension, axle or transfer case/power transfer unit
failure.
Winter driving
The original equipment tires on your Boss302 are designed for high
performance steering and handling. 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.
Do not operate your vehicle above posted speed limits and never
perform high speed driving with winter tires, even in clear, dry driving
conditions.
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.
The tires on your Boss302 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 Information
25
2012 05+ Mustang(197)
Supplement, 2nd Printing
USA(fus)