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Originally Posted by ACEV
No, you missed the point. First, the max presssure is not the reference for overinflating; it is the owner's manual or the door sticker for the car. 2-4 psi increase can be used for heavier loads, but not more.
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Complete b$, sorry ...
Car manufacturers post inflation pressures that are way too low.
It gives smoother riding.
On my previous car, a Volvo V50, they increased the tyre pressures significantly on later versions of the same model, while they are virtually identical in weight.
The tyre pressure was simply too low, because of that, handling was worse than it could be, tyre wear was higher than necessary and uneven on top of that !
Then the majority of customers forget to check for tyre pressure, and it gets dangerously low ...
On paved roads, you can safely run higher pressure than indicated by the car manufacturer.
I'd suggest using the given max. load pressure as an
absolute minimum.
Running too highly inflated tyres - within sensible limits - is not the problem.
Underinflation is.
Proven time and again alongside the road ...
Quote:
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The tire manufacturer's max is for the buyer to know if it fits within the auto manufacturer's specs.
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Like the episode with Volvo described above shows ... certainly. Not.