Uniform Tire Quality Gradings - Volvo S40 Owner's Manual

2007 Volvo S40
(5) Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may
not safely exceed the available cargo and luggage load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer, load from your trailer will be transferred to your vehicle.
1
Consult this manual
1
See "Towing a trailer" on
164
07 Wheels and tires
Vehicle loading
how this reduces the available cargo and luggage load capacity of your vehicle.
WARNING
Exceeding the permissible axle weight, gross vehicle weight, or any other weight rating limits can
cause tire overheating resulting in permanent deformation or catastrophic failure.
Do not use replacement tires with lower load carrying capacities than the tires that were original
equipment on the vehicle because this will lower the vehicle's GVW rating. Replacement tires with a
higher limit than the originals do not increase the vehicle's GVW rating limitations.
165 07 Wheels and tires

Uniform tire quality gradings

Uniform tire quality gradings
ALL PASSENGER VEHICLE TIRES MUST CONFORM TO FEDERAL SAFETY
REQUIREMENTS IN ADDITION TO THESE GRADES
Quality grades can be found, where applicable, on the tire sidewall between the tread shoulder and
maximum section width. For example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under
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to determine
page 147.