Reply To: Is 35 PSI OK if my tires were originally at 38 PSI? › Forums › Car Problems & Maintenance › Is 35 PSI OK if my tires were originally at 38 PSI? May 17, 2025 at 7:12 pm #1781 Raymond Always go by what the door says. The more pressure you got the better fuel economy you’re going to have tho. 38 is probably a good spot, honestly.