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BurbMan's avatar
BurbMan
Explorer II
Oct 21, 2014

Can a tire explode from Over-inflation?

DW took her car into the body shop this morning...again...rear ended in the rain while stopped at a light...drivers in this town are terrible, but I digress....

So she gets a min-van rental from one of the biggest car rental companies. Lunchtime, she says "the TPMS indicator is on, one of the tires is probably low, can you put some air in? I figure sure, easy enough. Pull it in the garage, and check the door jamb...36 psi called for at each corner. (Impressive 6100 lb GVWR too...)

So I grab the gauge and hit the LF...57psi :E 21 pounds over!! Must be a fluke, so I check the LR...55psi :E Then on to the RR...53psi :E Finally on to the RF which is at 19psi and has a nail in it...easy enough to get to, so I was able to plug it right on the car. All tires at 36 psi and the flat fixed.

Seriously, for the life of me I can't figure out why they overinflated the tires by 20 psi...no telling how long they have been like that either...is there a point where a tire could blow from being OVER inflated??

25 Replies

  • I've seen some of the new tires show 44 all the way up to 60 PSI as Maximum. Maybe the rental comapany went by the sidewall. I just had two Michelins put on my Toyota Avalon and they have a max of 44PSI on the sidewall
  • Probably someone with no gauge, or did not take the time to find it.

    Yep, that looks about right.
  • Did you adjust them all to 36? Probably a previous renter overinflated them thinking the fuel mileage would improve.