Audi A8 2018 Owner's Manual page 286

Wheels
(D
Tires for passenger vehicles
(if applicable)
"P" indicates a tire for a passenger
vehicle. "T" indicates a tire desig-
nated for temporary use.
@
Nominal width
Nominal width of the tire be-
tween the sidewalls in millime-
ters. In general: the larger the
number, the wider the tire.
@
Aspect ratio
Height/width ratio expressed as a
percentage.
©
Tire construction
R indicates a radial tire.
®
Rim diameter
Size of the rim diameter in inches.
@
Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the
maximum permitted speed c>
&
in
Winter tires on page 298.
"EXTRA LOAD", "xl" or "RF" indi-
cates that the tire is reinforced or
is an Extra Load tire.
Speed rat-
Maximum permitted speed
ing
p
up to 93 mph (150 km/h)
Q up to 99 mph (160 km/h)
284
Speed rat- Maximum permitted speed
ing
R up t o 106 mph (170 km/h)
s
up to 110 mph (180 km/h)
T up t o 118 mph (190 km/h)
u
up to 124 mph (200 km/h)
H up t o 130 mph (210 km/h)
V
up to 149 mph (240 km/h) al
z
above
149 mph (240 km/h)a)
w
up to 168 mph (270 km/h) al
y
up to 186 mph (300 km/h)a)
a)
For tires above 149 mph (240 km/h),
tire manufacturers sometimes use the
code "ZR".
0
US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap-
pear on the inner side of the tire):
DOT ... 2217 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2017.
@
Audi Original Tires
Audi Original equipment tires
with the designation "AO" have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
for safety and handling. An au-
thorized Audi dealer or author-
ized Audi Service Facility will be
able to provide you with more in-
formation.