Mine was delivered with all 4 tires at 40psi when 34psi is recommended. I know it's perfectly safe to run them at 40 but this would stiffen the ride further. Wonder why the dealer would deliver them as such?
What were yours delivered at?
Another car that missed the pre-delivery inspection???
Your vehicle was shipped with that overfilled PSI, it was supposed to have been adjusted at the dealer during the thorough PDI (pre-delivery inspection).
It is possible they skipped only this step, it is however more likely that the entire vehicle skipped the PDI process.
But rest assured, the dealer still charges Mazda for the ghost PDI... (notcool)
Mine was delivered with all 4 tires at 40psi when 34psi is recommended. I know it's perfectly safe to run them at 40 but this would stiffen the ride further. Wonder why the dealer would deliver them as such?
What were yours delivered at?
Yeah, the tire pressure check is as quick and easy as it gets. If they skipped that, then who knows what else!
One other thing I noticed (cleaning crew responsibility) was left over residue on the interior aluminum trim from the protective plastic from the factory. Had to clean it myself when I got home.
And mine went through two dealers, it had to be swapped in.
Manual states 34. Delivery was 41. The climate where your dealer is located might have something to do with it - depending on how conscious they are. I've reduced to 37 all the way around because I want a specific kind of performance in the region where I live. Mazda did a pretty good job of matching this particular vehicle with a good all-around tire. The tire selection could have been better for performance -or- for ride comfort, but I think they struck a really nice balance with these Falkens.
I'm probably looking at a set of Michelins or Yokohamas when it is time to replace - but honestly, they will have to seriously outperform the OEM selection (for my range of driving needs) in order for me to walk away from the Falkens. That means, I'm going to have to come across some fairly startling new information about either the Michelins or Yokohamas - else, I'll be sticking with the Falkens.
The Falkens are performing nicely. The only problem is the low UTQG rating of 300. Like many OEM's, they're not going to last long. That's probably what would prevent me from getting another set. Tires are around $900 a set, need them to last. Manufacturers usually install tires that is the best combo of quietness and performance for the vehicle as felt during a test drive.
The high pressure is said to keep the cars more stable when they're lashed down in the car carrier for the ocean voyage. We do not want the cars bouncing on soft tires when the weather is bad and the ocean rough.
Wow, after driving around for about a week in my new CX-9, I came across this thread and decided to check my pressures. One tire was at 59psi, the rest were at 55psi...crazy! I just dropped them all to 35, no wonder they were squealing everywhere.
Those kinds of inflation pressures can actually be rather dangerous - especially in heavier vehicles. Glad you finally checked it and shame on anyone delivering a vehicle that exceeds the specified max pressure limit.
BTW - the Falken ZIEX CT50 installed on the CX-9 has a max pressure (cold) of 51 psi. You were running in excess of that on all four corner.
Yep, surprised me. Those pressures were the highest I've ever seen in any car tire in my possession. I've rented cars and the rental agencies tend to bump up tire pressure to preserve tire life, even then I've never come across a car tire with that high a pressure. Glad this thread was here, who knows how long I'd have gone before checking them. I need to make that more of a regular maintenance item.