Arizona republican., 1918-08-25
CORD TIRES BUILT
 T0W|THSTANDH HARD
 KNOCKS AND USAGE

It is generally known among motoi- ists that cord tires are built to with stand great deal of wear and tear and even to takeNa large measure of un- deserved punishment-and despite se- were use, to deliver satisfactory ser vice and mileage. But just as a big robust man takes his good health as d matter of course and grows over con- fident and careless, cord tire users often abuse and neglect their tires be- cause they have been getting such good results with so little attention to them
 But everything has its limit of en- durance-and cord tires along with other things. And while a motorisl may misuse his tires and yet obtain a fairly satisfactory service from them, he obviously is not getting their full quota of inbuilt mileage. And in these days when, in the interest of economy and conservation every tire should be made to run out its last possible mile the motorists who is wasting a portion of the life of his tires, is not doing his full duty.
 According to G. E. Brunner, manager of the Goodyear Tire & Rubber com pany's service department, fully 40 per cent of the new cord tires that have been sold by that companys service stations in the last few months, to re- place worn out cords have replaced tires that went out of commission pre- maturely because of improper care and neglect. And almost invariably the untimely demise of the tire could be traced to the lack of proper air pressure.
 Because of the larger air capacity 1 in our cord tires and their greatr flex- ibility and more durable construction, We have advocated imitation pressures | for cord tires ten per cent lower than | for fabric tires" says MT. Brunner But motorists, encouraged by the | good service received, have been re- vising our imitation schedules down. ward and becoming careless about i proper imitation. A recent investiga- a- tion which We made, showed that many cord tire users were carrying only about half the recommended air pressure. And vet the great ma jority of these motorists were obtain ing what to them was very unsatis- factory service.
 But in these days when every cubic [ foot of shipping space on our ocear liners is almost priceless, every pound of rubber should be made to do its full duty and every tire should be made to deliver it's full measure of miles. Oul cord tires have ten per cent larger air capacity than the same size ir fabric tires, so the factor of safety ir air pressure for cord tires we place al 10 per cent. And whenever a motoriSt runs his tires at d less pressure thar our recommendation, he pays for his greater ease friding with a portion of the life of his tire.
 The use of cord tires is increasing rapidly and will continue to do so, be- cause of their easy riding qualities and the increased mileage they deliver. But sufficient attention must be paid tC the maintenance of proper air press ures if they are to be permitted to run out their full life. The layers of rub Der between the plies of cords art heavy-so heavy that the tires vii hold up under tremendous amount Of punishment-but they have limit and whenever that limit is reached the motorist pays for his experience with mileage that is Topped off his tires