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Wheels and tires – FORD 2015 F-150 User Manual

Page 335

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Information on P Type Tires

H

I

J

K

L

M

A

B

C D

E

F

G

E142543

P215/65R15 95H is an example of

a tire size, load index and speed
rating. The definitions of these

items are listed below. (Note that

the tire size, load index and speed

rating for your vehicle may be
different from this example.)
A. P: Indicates a tire, designated

by the Tire and Rim Association,

that may be used for service on

cars, sport utility vehicles,

minivans and light trucks. Note: If
your tire size does not begin with

a letter this may mean it is
designated by either the European

Tire and Rim Technical

Organization or the Japan Tire

Manufacturing Association.

B. 215: Indicates the nominal

width of the tire in millimeters

from sidewall edge to sidewall

edge. In general, the larger the

number, the wider the tire.

C. 65: Indicates the aspect ratio
which gives the tire's ratio of
height to width.

D. R: Indicates a radial type tire.

E. 15: Indicates the wheel or rim
diameter in inches. If you change
your wheel size, you will have to
purchase new tires to match the
new wheel diameter.
F. 95: Indicates the tire's load

index. It is an index that relates to

how much weight a tire can carry.
You may find this information in

your owner’s manual. If not,

contact a local tire dealer.
Note: You may not find this

information on all tires because it

is not required by federal law.
G. H: Indicates the tire's speed

rating. The speed rating denotes

the speed at which a tire is
designed to be driven for extended

periods of time under a standard
condition of load and inflation

pressure. The tires on your vehicle

may operate at different

conditions for load and inflation

pressure. These speed ratings may

need to be adjusted for the
difference in conditions. The
ratings range from 81 mph (130
km/h) to 186 mph (299 km/h).
These ratings are listed in the
following chart.

332

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Wheels and Tires