width VOLVO XC90 TWIN ENGINE 2020 Owners Manual

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WHEELS AND TIRES
550tion placard(s) located on the driver's side B-pillar and in the tire inflation table in thischapter.
Cold tires
: The tires are considered to be
cold when they have the same tempera-ture as the surrounding (ambient) air. Thistemperature is normally reached after thevehicle has been parked for at least 3hours.
Related information
Tires (p. 546)
Tire sidewall designations
The following information can be found on a tire's sidewall.
Federal law mandates that tire manufacturers place standardized information on the sidewallof all tires (see the illustration). The vehicle has been certified with certain combinations of wheels and tires. The following information is listed on the tire sidewall: The tire designation:
NOTE
Please be aware that the following tire designation is an example only and that
this particular tire may not be available onyour vehicle.
1. 215: The width of the tire (in millimeters)
from sidewall edge to sidewall edge. The larger the number, the wider the tire.
2. 65: The ratio of the tire's height to its
width in percent.
3. R: Radial tire (the designation RF and the
symbol indicate that the vehicle is
equipped with optional self-supporting run flat tires 3
.
4. 15: The diameter of the wheel rim (in
inches).
5. 95: The tire's load index. In this example, a
load index of 95 equals a maximum load of 1521 lbs (690 kg).
6. H: The tire's speed rating, or the maximum
speed at which the tire is designed to bedriven for extended periods of time, carry-ing a permissible load for the vehicle, andwith correct inflation pressure. For exam-ple, H indicates a speed rating of210 km/h (130 mph).
3 Self-supporting run flat tires may not be available on all models.

WHEELS AND TIRES
552
Uniform Tire Quality GradingALL PASSENGER VEHICLE TIRES MUST CONFORM TO FEDERAL SAFETYREQUIREMENTS IN ADDITION TO THESEGRADES .
Quality grades can be found, where applica- ble, on the tire sidewall between the treadshoulder and maximum section width. Forexample: Treadwear 200 Traction AA Temperature A
TREADWEARThe treadwear grade is a comparative rating based on the wear rate of the tire when testedunder controlled conditions on a specifiedgovernment test course. For example, a tiregraded 150 would wear one and one half (1 ½)times as well on the government course as atire graded 100. The relative performance oftires depends upon the actual conditions oftheir use, however, and many depart signifi-cantly from the norm due to variation in drivinghabits, maintenance practices and differencesin road characteristics and climate.
TRACTIONThe traction grades, from highest to lowest,are AA, A, B, and C, as measured under con-trolled conditions on specified governmenttest surfaces of asphalt and concrete. A tiremarked C may have poor traction perform-ance.
WARNING
The traction grade assigned to this tire is based on braking (straight-ahead) tractiontests and is not a measure of cornering(turning) traction.
TEMPERATUREThe temperature grades are A (the highest), B, and C, representing the tire's resistance to thegeneration of heat and its ability to dissipateheat when tested under controlled conditionson a specified indoor laboratory test wheel.Sustained high temperature can cause thematerial of the tire to degenerate and reducetire life, and excessive temperature can lead tosudden tire failure. The grade C correspondsto a minimum level of performance that allpassenger vehicle tires must meet under theFederal Motor Safety Standard No. 109.Grades B and A represent higher levels of per-formance on the laboratory test wheel thanthe minimum required by law.
WARNING
The temperature grade for this tire is estab- lished for a tire that is properly inflated andnot overloaded. Excessive speed, under-inflation, or excessive loading, either sepa-rately or in combination, can cause heatbuildup and tire failure.
Related information
Tires (p. 546)
Tire sidewall designations (p. 550)

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SPECIFICATIONS
664
Dimen- sionsmm inches
I Wheel track, rearJ 1667
K
1675 L 65.6
K
65.9 L
Wheel track, rear M 1671
K
1679 L 65.8
K
66.1 L
J Load width, floor 1192 46.9
K Width 1923N
1931 O
1958 P 75.7
N
76.0 O
77.1 PDimen- sions mm inches
L Width incl. rearview mirrors 2140 84.3
M Width incl. folded rear-view mirrors 2008 79.1
A
At curb weight + 2 people. (Varies slightly depending on tire dimensions, chassis, etc.)
B Does not apply to vehicles with 3 or 4 seats.
C From the second row of seats in 6-seat models *.
D From the second row of seats in 7-seat models *.
E Vehicles with 3 or 4 seats.
F Vehicles with 5 seats.
G Vehicles with 6 seats.
H Vehicles with 7 seats.
I Including roof antenna, at curb weight.
J Vehicles without pneumatic suspension.
K Vehicles with 19-inch wheels.
L Vehicles with 20, 21 and 22-inch wheels.
M Vehicles with pneumatic suspension.
N Chassis width.
O Width for vehicles with 19-inch wheels.
P Width for vehicles with 20, 21 and 22-inch wheels.
Related information
Weights (p. 665)