Different cars have different tire pressure requirements set by

the manufacture. Usually you should follow the tire pressure numbers on the plate near the driver side B bar. However, in your case, I think you should do more research and maybe ask Ford for more advise. The old Ford Explorer had a high center of gravity due to its truck-based design. The Ford engineers found the vehicle could not pass Ford's own test of rollover risk. So in order to pass the test without major design changes, they found a easy way to reduce the risk. It was to lower the tire pressure so the vehicle can stay hold in an emergency. The trick was OK except that most tires will generate extra heat when rolling at high speed especially when tire pressure is low. The OEM Firestone tires on those Explorer could not withstood the heat and blow out in hot summer days because of the low tire pressure and killed several people. It was the famous Firestone tire recall. Today's tire may be better than 10 years ago and diving at normal temperature will be no problem. But you are in the middle of two bad choices. No matter what you choose, you will fall into one. High tire pressure and high rollover risk, or low tire pressure but possible tire blow out. I don't have an answer.

所有跟帖： 

• 多謝指教。小心駛得萬年船哈。 -滿地找牙- ♂ (109 bytes) () 08/09/2010 postreply 22:21:18

• I would lower the tire pressures to 28-30 psi and change new.. -khyang86- ♂ (35 bytes) () 08/10/2010 postreply 09:14:01

• I would not set pressure below 30psi especially on trucks. -BigV8- ♂ (0 bytes) () 08/10/2010 postreply 13:25:30