If your running the OE Michelin Primacy, then the max psi is 50 not 33. Thirty three psi is what Honda recommends for ride comfort ect. If it were Europe, same tire would have higher psi "recommendation". So you technically are not overinflating your tire, based on the max psi. I always check the max psi of my tire and look at the weight of the vehicle, tire size and type, and driverain layout to determine my psi. Your mechanic is correct, on top of that you will get better fuel economy. The only time you want lower pressure is for drag racing. Imo 38-40psi is good for that tire. You will get better tire life, as well. The recommended 33psi is a little low for my liking considering the options. But as I mentioned earlier, they feel Americans want a softer ride. You can try 40psi if you like, but it will be a stiffer ride. Anything beyond 40psi isnt necessary imo, the car only weighs 3400. If it had another 500lbs or so on it, then yes. Im at 6/32 on my original tires right now so new shoes coming at end of next month probably. Going to switch to Conti DWS06 all seasons, and a wider/lighter wheel.Hey all, so I have my 2018 sport 2.0 T. Right now stock OEM all season tires. I know that our tires are rated for 33 psi all the way around. However, for performance driving, a very old family mechanic told me many many years ago that putting a few more psi of pressure in each tire is good... I’ve been the psi of pressure by 38 all the way around, would help. Is that still true? I’ve been putting about 38 psi pressure on my tires. Thanks for any help I really appreciate!
Air pressure info