2004 Mercury Mountaineer Owner's Manual - Page 257

Maintenance and Specifications Note: If your tires show uneven wear ask a qualified technician at a Ford or Lincoln/Mercury dealership to check for and correct any wheel misalignment, tire imbalance or mechanical problem involved before tire rotation. Note: Your vehicle may be equipped with a dissimilar spare tire/wheel. A dissimilar spare tire/wheel is defined as a spare tire and/or wheel that is different in brand, size or appearance from the road tires and wheels. If you have a dissimilar spare tire/wheel it is intended for temporary use only and should not be used in a tire rotation. Note: After having your tires rotated, inflation pressure must be checked and adjusted to the vehicle requirements. Tire wear Measure and inspect the tire tread on all your tires periodically. Advanced and unusual tire wear can reduce the ability of tread to grip the road in adverse (wet, snowy, etc.) conditions. Visually check your tires for uneven wear, looking for high and low areas or unusually smooth areas. Also check for signs of tire damage. When the tread is worn down to 1/16th of an inch (2 mm), tires must be replaced to prevent your vehicle from skidding and hydroplaning. Built-in treadwear indicators, or "wear bars", which look like narrow strips of smooth rubber across the tread will appear on the tire when the tread is worn down to 1/16th of an inch (2 mm). When you see these "wear bars", the tire is worn out and should be replaced. Inspect your tires frequently for any of the following conditions and replace them if one or more of the following conditions exist: • Fabric showing through the tire rubber • Bulges in the tread or sidewalls • Cracks or cuts on the sidewalls • Cracks in the tread groove • Impact damage resulting from use • Separation in the tread • Separation in the sidewall • Severe abrasion on the sidewall 257 REVIEW COPY: 2004 Explorer (exp), Owners Guide (post-2002-fmt) (own2002), Market: USA English (fus)