Garland City Globe | 1919-09-06 | Page 7 | Inflate Tires on Hot Days

INFLATE TIRES ON HOT DAYS Terrific Driving Neeeeiary to Generate EnoUQh Heat to Ralte Air Pressure Pres-sure In Tire. Motorists should ngnln be warn id ugalnst tho notion that tho heat of n summer dny expands the nlr Insldo a tiro to such an extent that tho tires do not need to bo blown up to tho same point ns In winter. Kxperlments show thnt It takes tcrrlllc driving nt racing speed for n considerable period to gen-erato gen-erato enough heat to rnlso tho nlr prc sure In n tiro live or six pounds. Tin expansion In n car driven nt nn. or dlnary rate nn n hot summer day Is so slight thnt no allowance should lx mado for It when tho tiro Is pumped up. Motorists would, do well In hot weather to test thu nlr pressure Ic their tires every few days to seo that tho leakago of air has not reduced the pressure to the point whero tho tire will suffer harm.