NISSAN 2014 GT R - Owner's Manual - Manual (Page 308)

is the wheel or rim diameter in
inches.
f. Two- or three-digit number (95): This
number is the tire’s load index. It is a
measurement of how much weight
each tire can support. You may not
find this information on all tires
because it is not required by law.
g. H: Tire speed rating. You should not
drive the vehicle faster than the tire
speed rating.
Example
2. TIN (Tire Identification Number) for a
new tire (example: DOT XX XX XXX
XXXX)
a. DOT: Abbreviation for the “Depart-
ment of Transportation”. The symbol
can be placed above, below or to the
left or right of the Tire Identification
Number.
b. Two-digit code: Manufacturer’s iden-
tification mark
c. Two-digit code: Tire size
d. Three-digit code: Tire type code
(Optional)
e. Three-digit code: Date of Manufac-
ture
f. Four numbers represent the week
and year the tire was built. For
example, the numbers 3103 means
the 31st week of 2003. If these
numbers are missing, then look on
the other sidewall of the tire.
3. Tire ply composition and material
The number of layers or plies of rubber-
coated fabric in the tire.
Tire manufacturers also must indicate
the materials in the tire, which include
steel, nylon, polyester, and others.
4. Maximum permissible inflation pressure
This number is the greatest amount of
air pressure that should be put in the
tire. Do not exceed the maximum
permissible inflation pressure.
5. Maximum load rating
This number indicates the maximum
load in kilograms and pounds that can
be carried by the tire. When replacing
the tires on the vehicle, always use a
tire that has the same load rating as the
factory installed tire.
Maintenance and do-it-yourself 8-37