Tire Pressure From Dealer

My 2015 CX-5 GT tires recommend 51 max psi. No where does it state 34 psi.
That means 51 psi is the maximum pressure the tire will inflate to without blowing up. But go ahead and run them there if you like and let us know how the ride quality is!
 
Door frame sticker on my '15 with OEM 19's is 36 psi but I keep them at 38 psi.
I keep 38 psi on my 19" tires too. Our weather varies too much and I can't check and adjust tire pressure too often and keep following the sudden temperature changes. I'd rather have a little overinflated than underinflated tires.
 
The dial ones are not necessarily more accurate, they go out of calibration too.
Any of the Accutire gauges are a good option but I liked this one because it was small enough to also fit inside the disc brakes on my motorcycle rims to read the pressure.
Before digital tire gauges came out, I was using two Bosch mechanical dial gauges. But like MikeM. said, it may require calibration especially if you drop it. Most of Accutire digital gauges have good reviews and I currently use these two and bought these at Sears during holiday season as Sears normally have half price sale on these:

https://www.amazon.com (commissions earned)
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https://www.amazon.com (commissions earned)
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Mee too...38 psi

Door frame sticker on my '15 with OEM 19's is 36 psi but I keep them at 38 psi. Sorry...upside down....

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I do the same, and it does not appear to affect the ride or handling...PS It is in the upper 90's here and I am sure the pressure is a bit higher after warm up.
 
My 2015 CX-5 GT tires recommend 51 max psi. No where does it state 34 psi.


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I am original OP - here is the sticker from my '15 Touring. I have since re-adjusted up to 38psi based on comments here.

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YO Tango

I am original OP - here is the sticker from my '15 Touring. I have since re-adjusted up to 38psi based on comments here.

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I for one, have the 2015 GT which has different tires than your Touring. I would check often and watch for wear ...Maybe run 36lbs?
My door jam sticker reads 36bs front and rear and I run 2lbs above (measured COLD)!
 
I am original OP - here is the sticker from my '15 Touring. I have since re-adjusted up to 38psi based on comments here.
Since I have already offended you twice (post #7 above) I will attempt to make amends by offering you some friendly advice. There is absolutely no reason to run your 17" Touring tires 4# over Mazda's recommendation. You'll end up with a firmer than usual ride and, as Buzzer777 alluded to above, run the risk of premature center tread wear. Car manufacturers these days suggest tire inflation that is on the ragged edge of over inflation in the pursuit of that last half mile per gallon. Generally speaking, the only reason to overinflate street tires is to gain a little bit of a handling edge if autocrossing. And it doesn't sound like that's what you're planning to do in your CX-5. Just drop the pressures to 34 all around, reset your TPMS and manually check the pressures with a decent guage once a month and you'll be fine.
 
Yo Tango 2!

Brought them down patiently to 34psi. Sure smoothed out those aggravating road ridges and imperfections. A much better ride - Woo Hoo! THANKS!


After re-reading some of the posts here...I share the LAST Paris1 post regarding your air pressure..That is, leave them at about 34lbs and continue to check cold.

I am lucky and own a compressor, so that if I let too much out, I can re-inflate to the correct pressure! Now I was a bit taken back the ist time since my GT came with green pressure caps (NITROGEN) bleh...scam since air is about 76% nitrogen and I am not a race car driver!(headshake

BTW...I am a male and a few years your elder... Continue to ride it like you stole it!!! :)
 
You'll end up with a firmer than usual ride and, as Buzzer777 alluded to above, run the risk of premature center tread wear.

Firm is good. I've found manufacturers to specify pressures on the low side of optimum in terms of tread wear. Maybe because I drive a lot of twisty roads and like to take the corners fast but, if I run manufacture suggested pressures I get excessive wear on the outside of the tread and the tires tuck under during hard cornering.

Better steering response, better hard cornering, higher MPG, more even tread wear, longer tire life, more load carrying capacity, what's not to like? B

BTW, my CX-5 Owners manual instructs to fill winter tires to 4.3 psi ABOVE the pressure listed on the placard. That's only for winter tires but for Mexico the placard lists 38 psi (front), 41 psi (rear) when traveling with a full load. Personally, I would be more concerned about the pressure being too low than too high. That's when most blowouts happen.
 
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I am original OP - here is the sticker from my '15 Touring. I have since re-adjusted up to 38psi based on comments here.
When people keep 38 psi which is for GT's 19" tires with recommended tire pressure at 36 psi. Your 17" tires have recommended pressure at 34 psi. While personally I don't mind putting 38 psi if I were you, but you may keep at 36 psi on your 17" tires at this time and keep checking the wear pattern.
 
I've found manufacturers to specify pressures on the low side of optimum in terms of tread wear.
This is exactly what I've found from manufacture recommended tire pressures! The most ridiculous one is our Honda CR-V which has recommended pressure at 26 psi but I have to keep it at least at 35 psi to make sure there is no excessive wear on the outside tread.

... for Mexico the placard lists 38 psi (front), 41 psi (rear) when traveling with a full load.
This is what the recommended tire pressures for the US bugs me - one size fits all! This happens not only on Mazda, but also on many European cars - giving different recommended tire pressures for different loads for other regions but the US! Do the car manufactures think Americans are too lazy to adjust tire pressure due to different load?

I would be more concerned about the pressure being too low than too high. That's when most blowouts happen.
Ha! You hit the nail on the head! I'd think many people would worry about keeping too much air in the tires which makes tires prone to blowouts!
 
Do the car manufactures think Americans are too lazy to adjust tire pressure due to different load?

Um... you mean they're not?

Most people are too lazy to check their pressure at all, much less to adjust for load.
 
Saw that as well. Why is that?

The Owner's Manual doesn't provide a reason why they recommend an additional 4.3 psi for winter tires but I've been doing this for years for reasons I discovered on my own.

If I run winter tires at the pressures listed on the placard, they build too much heat during highway driving on bare and dry roads. This causes the winter rubber compound to continue to cure which makes it unsuitable for winter driving. If I know I will be driving entirely on snow/ice AND I will not be carrying a load, I will reduce the pressure to as low as 34-35 psi. for increased traction but I always insure they are aired back up before fast travel on bare and dry pavement. In actuality, with winter tires, it is generally not necessary to decrease pressure since there is an abundance of traction even at 38 psi. All-season radials are susceptible to the rubber compound over-cooking as well (although to a lesser degree) which is why I run at least 3 psi over the pressure listed on the placard. I also achieve more even tread wear from side to side.
 
I am original OP - here is the sticker from my '15 Touring. I have since re-adjusted up to 38psi based on comments here.

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You have to remember that you have a FWD touring model. A lot of the people that said they run 38psi have the heavier AWD model and the larger 19" wheels and tires. Those running 38psi have the recommended PSi sticker of 36psi. Since your car recommends 34 psi I would inflate to 36psi not 38psi and see how you like it. That's the 2psi difference most people are talking about.
 
The Owner's Manual doesn't provide a reason why they recommend an additional 4.3 psi for winter tires but I've been doing this for years for reasons I discovered on my own.

If I run winter tires at the pressures listed on the placard, they build too much heat during highway driving on bare and dry roads. This causes the winter rubber compound to continue to cure which makes it unsuitable for winter driving. If I know I will be driving entirely on snow/ice AND I will not be carrying a load, I will reduce the pressure to as low as 34-35 psi. for increased traction but I always insure they are aired back up before fast travel on bare and dry pavement. In actuality, with winter tires, it is generally not necessary to decrease pressure since there is an abundance of traction even at 38 psi. All-season radials are susceptible to the rubber compound over-cooking as well (although to a lesser degree) which is why I run at least 3 psi over the pressure listed on the placard. I also achieve more even tread wear from side to side.

I've never heard of this running higher pressure in the winter tires before. It makes sense. I also did not read that section of the owners manual yet. So If I'm under standing this right, the winter tire setup should be at about 40psi since I have the GT AWD? Does this change at all with rim size? The GT has the 19" rims, my winter rims are 17" so should I follow the 17" wheeled touring and sport recommended PSI of 34 and add 4psi to that or should I use the 19" psi recommendation and at 4 psi to that? Head is spinning right now.
 
Since I have already offended you twice (post #7 above) I will attempt to make amends by offering you some friendly advice... ....... Just drop the pressures to 34 all around, reset your TPMS and manually check the pressures with a decent guage once a month and you'll be fine.

Thank you Paris1 - I have respected your input on this forum. All is well........(drinks)
 
After re-reading some of the posts here...I share the LAST Paris1 post regarding your air pressure..That is, leave them at about 34lbs and continue to check cold.....BTW...I am a male and a few years your elder...

Continue to ride it like you stole it!!! :)

You can bet I will!!! - (drive2)(five-0)
 
A lot of the people that said they run 38psi have the heavier AWD model and the larger 19" wheels and tires. Those running 38psi have the recommended PSi sticker of 36psi.

My comments were specific to the smaller 17" wheels/tires. The manual doesn't distinguish between AWD and FWD due to the extra 100 lb. or so (and neither should you). The difference between the AWD and FWD in terms of air pressure is there is no limiting factor on running different pressures front/rear on the FWD models. With AWD I like to keep the pressures the same. On FWD models you can experiment a little with the front/rear pressure differential to fine tune the corner handling.

Since your car recommends 34 psi I would inflate to 36psi not 38psi and see how you like it. That's the 2psi difference most people are talking about.

I can feel 2 psi difference although many claim they cannot. There is no harm in trying 38 psi even with 19" wheels because all tires are engineered differently and these differences mean that different tires will perform better at different pressures. There is also the matter of driver preference. Some drivers will find 38 psi on the 19" wheels too firm for comfort. And, again, this can vary from tire to tire. But there is no harm in trying it.
 
Just bought the car 2 days ago with 4 miles on it. It was new still wrapped on the outside and inside. After seeing this thread I decided to check the tire pressure and guess what my 17 tire pressure were set at? 51 psi !!!!

Gonna go back down and deflate. to about 37-38 psi. Havent made up my mind yet on how much higher to go over the recommended amount.
 
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