Well Artbuc enlightened us all with his superior knowledge so your post was well worthwhile... Thanks Art...

 

But if you don't pay the dealer for Official Lexus Certified Gaseous Nitrogen in your tires, you won't get those nice teal valve stem caps.

 

If you buy tires at Costco you get a set of those teal valve stem caps as well.

 

I'm sure dealers love it when you ask them why you should pay their extortion fee for Nitrogen when you can get it free at Costco with the caps included.

 

I recall reading the Nitrogen Fill Sales Spin that pointed out that Race Car Teams use nitrogen in race car tires.
Matter of convenience it would seem because the Air Powered Wrenches are connected to a cylinder of nitrogen
gas because a cylinder of simple compressed air would contain oxygen and be a fire hazard if ruptured.
See, we use nitrogen in race car tires!

 

Juice is not worth the squeeze!

 

I did it, once. Because it was the "nitrogen fill" along with a road hazard warranty. The road hazard warranty paid for the whole deal (cut sidewall on one of the "nitrogen filled" tires) so I broke even anyway.

Never again, though.

 

Hmm...
That should be plus 273.15.

Perhaps you've gotten the number used in the old, no-longer-used SI definition of kelvin derived from the triple point of water at standard atmospheric pressure, 273.16ºK; 0.01ºC, mixed up with the celsius to kelvin conversion constant. The celsius temperature scale sets 0ºC at the freezing point of water at standard atmospheric pressure so the conversion constant between the two temperature scales is 273.15.

 

Good catch…stuck in the 70’s. However, you must admit there is some variability/uncertainty in the triple point of water. Most would agree that 0° is close enough and so is 273.16K. Wait another 10 years and it will be adjusted again.

 

PV=nRT ...

Just try'n to be helpful isall

 

if U fill the tires with Helium will the car be lighter?

 

Helium molecules are smaller than air/nitrogen so they will escape the tire faster and you will losing PSI more quickly.
That's why helium balloons deflate so quickly.
Also the weight difference will be almost negligible while price will be definitely higher than Nitrogen.

 

Right, this gas law combines Boyle, Charles, Gay Lussac and Avogadro. It is for ideal gas only.

 

>It is for ideal gas only.
Ideal is always an intention of mine
:-)

 

If you want to race your Lexus in F1, you should fill it up with nitrogen like all other F1 cars do.