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INDEPENDENT TESTS SHOW MICHELIN'S MX4 BETTER IN WET TRACTION THAN AQUATRED -- NEW AND AS TIRES WEAR

 GREENVILLE, S.C., Sept. 8 /PRNewswire/ -- Michelin's all-season MX4 beat Goodyear's Aquatred "wet-weather tire" in independent tests that rated the tires' wet traction over 42,000 miles of wear.
 Each tire was tested at 20 mph and 60 mph on smooth-asphalt pavement. Michelin's MX4 exceeded the wet traction of the Aquatred at both speeds by approximately 20 percent when new. The MX4 continued to have better traction than the Aquatred when tested at each 6,000-mile test point.
 At the 42,000-mile test point, the MX4 still exceeded the traction of the Aquatred by 13 percent at 20 mph and by over 40 percent at 60 mph.
 Furthermore, while both tires lose wet traction capability with wear, the Goodyear tire loses its capability at a faster rate for the first 18,000 miles.
 Also pitted against the Aquatred was the Michelin XH4, which has an 80,000-mile tread life warranty and makes no claim to being specifically a "wet-weather tire." The XH4 equaled the Aquatred in wet traction at 42,000 miles, and engineering projections suggest the test XH4 had enough tread left for 56,000 more miles of driving.
 The tests were conducted by a nationally known, independent laboratory using industry-standard "analytical adherence" testing equipment. Tire mileage was clocked on identical 1993 Ford Tauruses driven on a course of public roads chosen to approximate typical driving conditions.
 Earlier tests of new tires showed the MX4 provides shorter and more consistent stopping distances on wet pavement than the Aquatred, as well as superior wet traction.
 Once again, results suggest the V-shaped, standard-depth "center channel" design of the Aquatred is not the ideal solution for evacuating water from under a tire.
 As the Aquatred wears, the void area offered by the center channel decreases dramatically. The tire's ability to disperse water diminishes as the void area decreases.
 By comparison, the Michelin MX4 uses a design that incorporates three circumferential grooves for water dispersion. Since the grooves are not V-shaped, they lose a smaller proportion of their void areas as the tire wears, thus maintaining the tire's effectiveness in the wet.
 Test data is available upon request.
 -0- 9/8/93
 /CONTACT: Martin Peters, 803-458-6957, or Bill Patterson, 803-458-6112, both of Michelin/


CO: Michelin ST: South Carolina IN: AUT SU:

CM -- CH009 -- 9930 09/08/93 15:25 EDT
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Publication:PR Newswire
Date:Sep 8, 1993
Words:387
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