Quote:
Originally Posted by nemo
" However, although the car got even better gas mileage when the tires were over-inflated, this is not a good idea for safety reasons and because it causes the tires to wear unevenly."
But did the do any testing to prove this statement?
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If they did, they didn't show it in this show or any other that I've seen.
My take is that it is the usual US legal BS to avoid liability - thereby sustaining the myths they're pretending to be busting.
Maybe we, as part of the ecomodder / hypermiling community, should ask them to test when tyres really blow out, to settle the issue once and for all.
I very much doubt the
overinflated tyre will fail on this side of 100psi
Test conditions :
- decently handling, non-hybrid car.
- fuel use and course times to be monitored
- good quality, new tyres rated for say 45psi.
- no re-use of the underinflated tyres for any of the other tests !
- demanding handling and/or harshness course to get the heat in the tyres.
- say 30 psi under and over the car's recommended pressure.
Test ends when a tyre blows or comes off the rim.