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.
In: 0
It does, under inflated tires introduce higher rolling resistance leading to the higher gas consumption. If I remember correctly, the ratio is for every 1-psi drop in pressure, and you can expect your gas mileage to lower by 0.4 per cent.
Over inflating them will make more bounce, impact drivability, and increase tyre wear.
Latest Answers