My tire psi for my EV is set for 36 psi but most dealerships and people keep them at 40 psi. Would this have anything to do with gas mileage and efficiency?
I would think that inflating your tires more would be more efficient but also cause more wear because there’s greater forces on the rubber. But too little inflation would cause them to hit every rock and bang it up more.
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Slightly deflated is more contact on the ground, very useful and recommended for when you need more control like driving on sand. Also slightly more comfortable ride with stuff like bumps in the road.
Over inflated makes less contact with the ground, so basically less control, less impact absorption, but you lose less energy in contacting the road.
If you had to min-max, slightly under inflated for low speed driving, slightly over inflated for highway driving. If you stick to one of the other watch out for drastic temperature changes in weather, that could change your pressure by a decent margin and leave you higher or lower than you want.
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