First real cold morning of the year- tire sensor went off

I

Infamous-D

Member

:

CX-9, 2015 AWD

• Oct 24, 2016

• #1

Haven't checked actual pressure but doesn't appear to be low on any of the tires and just thinking the cold triggered the drop in pressure.

I have Nitrogen filled tires. Should I check the pressure and throw in some air?

Or should I just restart the system due to the cold?

 

K

Keno1542

Yellow Jacket

:

Mazda MP3

• Oct 24, 2016

• #2

You are right in the pressure probably went down due to the cold. You will have to get some more air in there. I would check all of the tires, if one went low, the others are probably not too far behind.

 

mazdadude

ZOOOOOOOOOM ZOOOOOOOOOM

:

'16.5 Mazda CX-5 Touring

• Oct 25, 2016

• #3

Yes you can add some reg air to the NITROGEN...
Do not reset the TPMS without checking/adjusting the tire pressures...

Check the COLD PSI on each tire.

Adjust to desired PSI.

Follow the TPMS Reset procedure. (Press and hold button until you hear beep/flash ~1 sec)


For AIR inflated tires the rule of thumb is that the PSI drops 1.0 PSI for every 10.0 degrees F. of temp drop.

I do not know what the rule of thumb would be for Nitrogen tires, but would like to find out... (cool)

 

Last edited: Oct 25, 2016

L

leeharvey418

Member

:

2019 CX-5 Signature; 2014 CX-9 Touring AWD

• Oct 25, 2016

• #4

mazdadude said:

I do not know what the rule of thumb would be for Nitrogen tires, but would like to find out... (cool)

Click to expand...

There is no special rule of thumb for nitrogen because nitrogen and dry air have exactly the same P/T curve.

 

mazdadude

ZOOOOOOOOOM ZOOOOOOOOOM

:

'16.5 Mazda CX-5 Touring

• Oct 25, 2016

• #5

leeharvey418 said:

There is no special rule of thumb for nitrogen because nitrogen and dry air have exactly the same P/T curve.

Click to expand...

Thank you! Looks like the key is DRY air! (headbang)

 

L

leeharvey418

Member

:

2019 CX-5 Signature; 2014 CX-9 Touring AWD

• Oct 25, 2016

• #6

mazdadude said:

Looks like the key is DRY air!

Click to expand...

Bingo. 90% of the purported benefits of nitrogen inflation can be had just by putting a dessicator on one's compressed air system.

 

P

PTguy

:

Mazda CX-9 Grand Touring 2016

• Oct 25, 2016

• #7

But then how would the sellers of the nitrogen fill systems make any money?

 

T

table5511

• Nov 11, 2016

• #8

PTguy said:

But then how would the sellers of the nitrogen fill systems make any money?

Click to expand...

Without getting too opinionated here, I will just say I like this statement.

 

K

Keno1542

Yellow Jacket

:

Mazda MP3

• Nov 11, 2016

• #9

While there are huge benefits to using nitrogen in racing, mainly the PT chart and being able to consistently get the same pressure at a certain tire temperature. Nitrogen does have its place in daily driving too. The pure, dry nitrogen will last longer in your tire, due to the larger molecule size of nitrogen compared to dry atmospheric air, amongst other benefits. Main problem is that shops are way overcharging people for it, and making it out to be like its the end all be all, with no competitor.