Jeep 2007 Grand Cherokee Series Owner's Manual page 279

• European Metric tire sizing is based on European
design standards. Tires designed to this standard have
the tire size molded into the sidewall beginning with
the section width. The letter P is absent from this tire
size designation. Example: 215/65R15 96H
• LT (Light Truck)-Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters "LT" that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
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• Temporary Spare tires are high-pressure compact
spares designed for temporary emergency use only.
Tires designed to this standard have the letter "T"
molded into the sidewall preceding the size designa-
tion. Example: T145/80D18 103M.
• High Flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter molded
into the sidewall. Example: 31x10.5 R15 LT.
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