How old are your tires

[dodj]

I am thinking of getting the Nitto NT555 G2, 320 treadwear, W rated. 245/45/17 front and 275/40/17 rear. Much cheaper than the Michelins I have on my daily. I will do that when the rain stops.

I run Nitto tires. Not the triple 5's but NT05's. Happy with them

[torredcuda]

Maybe nitrogen is a good option? "Tires filled with nitrogen also experience less oxidation and degradation, which helps them stay in prime shape for longer. Unlike compressed air, which contains oxygen and water vapor, pure nitrogen is a dry gas, meaning it doesn't react to the environment surrounding it.

Normally, the oxygen and water vapor in compressed air cause the tire to rust or oxidize overtime, leading to damage. However, since pure nitrogen is dry, it won't allow that rust or oxidation to occur, keeping your tires in better condition for longer."

[cuda hunter]

That is a good idea.  I will have to inquire with my tire guy about the positives and negatives of nitrogen.

[Racer57]

Things that make you go hmmmmmm.   In regards to using nitrogen.....
The tire is mounted onto the wheel with the surrounding air in the tire. You then add nitrogen to the tire to inflate. How much nitrogen is actually in the tire versus the air that was already in it when mounted ? 

[JH27N0B]

Things that make you go hmmmmmm.   In regards to using nitrogen.....
The tire is mounted onto the wheel with the surrounding air in the tire. You then add nitrogen to the tire to inflate. How much nitrogen is actually in the tire versus the air that was already in it when mounted ? 

Seeing how air in earth's atmosphere is already 78% nitrogen, I'd hazard a guess that only a trace of oxygen is present in a tire inflated with nitrogen when being mounted.
Nitrogen in tires is a somewhat controversial subject due to so many car dealers, or as many call them, car stealerships, adding hundreds of dollars in additional costs to new cars sales for nitrogen filled tires.  In these cares, how do they even do the process, deflate the already mounted tire and refill with Nitrogen?
I think tire shops will fill tires with Nitrogen for around $7 to 8 a tire.  So that shows how much added profit dealers get when they add hundreds of dollars to your new car purchase for nitrogen filled tires.
It certainly can't hurt to pay a tire shop $30 or so extra for nitrogen fill when mounting your new tires, but scant evidence it does much good.  In my case, every fall I inflate my vintage cars tires up to 40-45 psi to help prevent flat spotting when the car hibernates for 6 months, and then deflate back to 30 in spring, so a nitrogen fill would be quickly lost on my new tire purchase unless I took the car back to a tire shop in fall to pay them to over inflate them for me.

[70pumpkin]

I've heard that some Costco gas stations have free nitrogen air pumps.  In the SF Bay Area, I think San Jose might have them.

[pschlosser]

Maybe nitrogen is a good option? "Tires filled with nitrogen also experience less oxidation and degradation

This may be true, but tires do not generally degrade and oxidize from the inside.  Even a well worn, gray and aged tire, looks pretty darn good on the inside when removed.

[torredcuda]

"Over time, a tire's internal structure degrades, reducing adhesion between the belts, which in turn facilitates tread separation. This internal degradation occurs regardless of tread use and wear."

[JH27N0B]

The stealership I bought my Dart from put nitrogen in the tires (and etched the glass and added wheel locks) as part of a mandatory from them $600 "security" package.
At about 17000 miles, while driving on a road that was rough due to being stripped to be repaved, I hit a bump.  A few weeks later I noticed a big "mump" on a front tire sidewall and had to replace the tire.  The nitrogen fill didn't help prevent that interior tire seperation that allowed air to seep through and create a lump.
Low profile tires and Chicago area roads are not a good combination!
A friend of mine is head mechanic for a truck fleet.  He thinks nitrogen fill tires is a joke.  In fact I've never heard of any truck fleets, over the road or local, using nitrogen to fill truck tires, which is something to think about.

[7212Mopar]

Air contains about 21% oxygen which is an oxidizer. In combination of heat, it accelerates degradation of rubber. Nitrogen is abandon and is an inert gas and thus a better choice to pressurize a tire. N2 cost more for operators, repair/tire shops to fill tires. They would not do it if there is no benefits.

[70vert]

I am thinking of getting the Nitto NT555 G2, 320 treadwear, W rated. 245/45/17 front and 275/40/17 rear. Much cheaper than the Michelins I have on my daily. I will do that when the rain stops.

I have Nitto's on mine, A555 R2. 225/50R17 on front and 255/50R17 on rear. I prefer a slightly lower stance than stock and these are perfect for that.

[Racer57]

Air contains about 21% oxygen which is an oxidizer. In combination of heat, it accelerates degradation of rubber. Nitrogen is abandon and is an inert gas and thus a better choice to pressurize a tire. N2 cost more for operators, repair/tire shops to fill tires. They would not do it if there is no benefits.

The benefit is what the shops make to do it.

[cuda hunter]

This may be true, but tires do not generally degrade and oxidize from the inside.  Even a well worn, gray and aged tire, looks pretty darn good on the inside when removed.

To the contrary, my tire guy has shown me several times tires that are perfect on the outside but when you take them off and bend the tire and look inside there are little fish scale degradation spots everywhere.  I didn't believe it so he showed me multiple tires that are still in 7 year time frame that were degrading. 
  If the chinese would just use more Oil in the tires none of this would be a problem. 
  This is driven by profit.  Companies don't make money from selling you and I products that will last years and years.  That is why china has now taken the business and manufacturing away from Americans.  They make crap that will break and then we buy more. Over and over and over again. 
  Until we as a people in this country all realize this and take manufacturing back we will be subject to having all short term temporary items while we live. 

  If we could take manufacturing back and not have to buy the same thing every 2 or 3 years over and over again the money and time spent on that goes into new innovations for our people.  The money goes into the retirements of the elderly and inheritance for the family.   All of that is gone when we give it to china (and other countries) . 

[pschlosser]

This may be true, but tires do not generally degrade and oxidize from the inside.  Even a well worn, gray and aged tire, looks pretty darn good on the inside when removed.

To the contrary, my tire guy has shown me several times tires ....

okay, maybe you guys are right.  I stand corrected.

[dodj]

Maybe nitrogen is a good option?

Only to an extremely small extent.