1997 LINCOLN CONTINENTAL Owners Manual

248
Replacingth e Tires
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249
Information About Tire Quality GradesNew vehicles are fitted with tires that have their
Tire Quality Grade (described below) molded into
the tire's sidewall. These Tire Quality Grades are
determined by standards that the United States
Department of Transportation has set.
Tire Quality Grades apply to new pneumatic tires
for use on passenger cars. They do not apply to
deep tread, winter-type snow tires, space-saver or
temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production
tires as defined in Title 49 Code of Federal
Regulations Part 575.104(c)(2).
U.S. Department of Transportation Ð Tire
quality grades:The U.S. Department of
Transportation requires Ford to give you the
following information about tire grades exactly as
the government has written it.
TreadwearThe treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a specified government test
course. For example, a tire graded 150 would wear
one and one-half (1 1/2) times as well on the
government course as a tire graded 100. The
relative performance of tires depends upon the
actual conditions of their use, however, and may
depart significantly from the norm due to variations
in driving habits, service practices and differences in
road characteristics and climate.Traction A B CThe traction grades, from highest to lowest, are A,
B, and C, and they represent the tire's ability to
stop on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have
poor traction performance.
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250
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251
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252
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253
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254Typical octane rating labelDo not be concerned if your vehicle sometimes
knocks lightly. However, if it knocks heavily under
most driving conditions on the recommended
octane fuel, see your dealer or a qualified service
technician to prevent any engine damage.Fuel qualityIf you are experiencing starting, rough idle or
hesitation problems try a different brand of fuel. If
the condition persists, see your dealer or a qualified
service technician.The American Automobile Manufacturers
Association (AAMA) issued a gasoline specification
to provide information on high quality fuels that
optimize the performance of your vehicle. We
recommend the use of gasolines that meet the
AAMA specification if they are available.
It should not be necessary to add any aftermarket
products to your fuel tank if you continue to use a
high-quality fuel.
Cleaner airFord approves the use of gasolines to improve air
quality, including reformulated gasolines that contain
oxygenates such as a maximum of 10% ethanol or
15% MTBE. There should be no more than 5%
methanol with cosolvents and additives to protect
the fuel system.
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Update:Fri Sep 6 08:51:16 1996

255
WARNING
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