What should tire be inflated to??

537 Views 16 Replies 9 Participants Last post by EarlyEVadopter, 3 d ago

Watts-Up

Discussion Starter · 7 d ago

I found these in the owners manual page 8-22 and 10-5

See less See more

Save

1 - 5 of 17 Posts

EarlyEVadopter

· #9 · 7 d ago

Watts-Up said:
Well, my door panel says 41 psi, but it was delivered with 46 psi. There is a note that tells me to refer to the owners manual for more information. I do have the heated steering wheel. The car is heavier than most so 46 would be understandable. The jury is still out for me.

Nissan recommends 38 psi for normal loading and 44psi in the rear tires (heavy loading ) for the Arya Evolve + in most parts of the world except for the USA. That said the USA utilizes EPA testing to determine estimated driving range figures vs,outside of the USA, where,range ratings are based on WLTP (Worldwide Harmonised Light Vehicle Test Procedure) which many consider is easier to arrive at a generous range number than EPA ratings are.
So it’s more than an interesting coincidence to me that the USA version of the so called long range Venture which weighs 80 pounds less than the Evolve + and all other FWD trims recommends its tires to be inflated to 46 PSI. whi Logic would suggest that the Evolve,+ Premier and Empower + trims that weighslightly more than the Venture + might inflate thir tires the same or possibly a little more, right.? Nope, all other Ariya FWD trims in the USA recommend tire pressure at 41 PSIfor all four tires in the USA.

So why does Nissan recommend 38 PSI most everywhere else in the world? If you connect the dots IMO Nissan manipulated the EPA range ratings by over inflating the tires for all trims to reach their target. Obviously the Venture + trim was the only trim that was able to reach that illusive 300 +,mile milestone but many Venture + owners have also complained of a rough ride too. So I suspect that’s why Nissan decided to back off the remaining trims in the USA to 41 psi to attain an acceptable ride but not so much that it impactEd EPA range too drastically.
Lastly If you care to take the time to view Nissans TPMS tutorial you’ll notice that 38 PSI is the recommended target considered there as well. Coincidence?
Bottom line: I run my Ariya,Evolve + tires at 38 PSI ( as Nissan recommends most every where else in the world) and enjoy a much smoother ride.

See less See more

Save

EarlyEVadopter

· #11 · 7 d ago

Watts-Up said:
Some food for thought and good insight. Your mention of the tpms got me thinking about the Easy Fill Tire Alert. I haven’t used it but they only referenced a designated pressure and not a value. Anyone used it? My preference would be for comfort so I will make like Tom Brady and start deflating.

I like your analogy.

Save

EarlyEVadopter

· #13 · 6 d ago

Fitty said:
When I picked up my Evolve+, the tires were at 46 psi, even though the recommended psi is 41. Now that I've had the car for almost 5 months, the psi is at 41 and I haven't inflated to 46. Wondering if I should now.

46 psi is too high for Evolve + and 41 psi as you said is recommended by Nissan in USA ,…..I run 38psi in my Evolve + and get a better ride with no wear issues

Save

EarlyEVadopter

· #14 · 4 d ago

Watts-Up said:
Some food for thought and good insight. Your mention of the tpms got me thinking about the Easy Fill Tire Alert. I haven’t used it but they only referenced a designated pressure and not a value. Anyone used it? My preference would be for comfort so I will make like Tom Brady and start deflating.

I assume you did watch the Nissan authorized TPMS video that referenced a door placard showing the recommended tire pressure of 38psi. I have yet to view a USA issued Ariya door placard recommending 38 psi including the Engage trim that weighs the least. ScittishAriya also noted in a post a while back that his UK issue Evolve + trim recommended 38psi for all four tires unless there was heavy loading and in that application the rear tires should be inflated to 44psi. So it seems 41 psi is the lowest recommended tire pressure setting for any Ariya shipped to the USA. ergo My gut tells me that the higher recommended tire pressures in the USA are largely driven by EPA ratings.

Save

EarlyEVadopter

· #17 · 3 d ago

ScottishAriya said:
As mentioned in this thread EU cars have a recommended tyre pressure of 38PSI and I’ve been running this pressure on my car since new.

I’d previously checked tyre wear at 7,000 miles and had even wear across the width of the tyre. Now I’m almost at 12,000 miles I’ve checked again and can report :

Fronts are at 5mm depth in the centre. 5.2mm on the outsides of the tread.
Rears are 6.2 centre, 6.4 on the shoulders.

I’d describe my driving as spirited , and there are plenty of twisty roads here in Scotland. Tyres are 19” Bridgestone Alenzas.

I’d conclude that the 38PSI figure should work for most and provide even wear rates. Given that I’m seeing just a hint of more wear in the centre I’m deflating a little to 37PSI and will see how that goes.

I’ve not been impressed with the grip of the Bridgestones in our moderately cold and wet winter and will likely swap to all weather tyres such as the Michelin Crossclimate , or Goodyear 4Seasons before next winter.

Thanks for the update @ScittishAriya , for your tire/wear data that I believe is very useful for those of us in the USA who continue to be suspicious of Nissan North America motivation to recommend excessive tire pressures. I’m even more suspicious now with your update comparing that data with the revelation from a few US forum members who are experiencing premature tire wear while being inflated at a higher psi value than Nissan recommends elsewhere in the world.

Save

Reactions: 2

1 - 5 of 17 Posts

Top Contributors this Month