Goodyear brought a softer compound to Phoenix for the NASCAR Cup title-decider, and tire issues began during Friday's practice session. However, no one was sounding the alarm to tire supplier Goodyear. Several crew chiefs admitted to pushing the limit with lower air pressures in order to gain a speed advantage, and there was a similar sentiment after Sunday's wild finale at Phoenix.
Goodyear recommends a minimum air pressure in the tires for each race, but it's no surprise teams were tempted to go beyond that in search of an edge.
