LARRY70GS
Full Member
- Joined
- Jul 28, 2004
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- 4,096
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- Location
- Oakland Gardens, N.Y.
- Buick Ownership
- 70 GS455 Stg1
Another factor is the road conditions. Hitting a pot hole with a tire inflated to 30 PSI tire and than hitting that same pot hole with a tire at 43 PSI will be significantly different. At 30 PSI the sidewall flex will absorb some of the energy but at 43 PSI that sidewall is really stiff and the impact will be passed on significantly more to your struts/shocks and other steering components, not to mention you and your passengers . There are pros and cons to both pressure settings.
Curiously enough, the ride between 30 and 43 psi felt the same, but the handling and gas mileage was noticeably different.





