Air pressure
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The manual as well as knowledgeable tire shops run the tires at door sticker ratings. It doesn’t matter what the tire pressure says as that’s max for tires. Personally, when I put new E rated Michelin’s on my 2018 I stayed close to the door post ratings. When towing my travel trailer though I usually bump up my rear air pressure to 50/60 psi. Just provides a more stable ride. When not towing I drop the air pressure back down to 38/40 psi.