Why does my car have green topped valve covers?

[strat61caster]

[ame="http://www.amazon.com/Mini-Inline-Desiccant-Dryer-Filter/dp/B00W7XHT52"]Amazon.com: 1/4" Mini Inline Desiccant Air Dryer / Filter 2 Pack (Made in USA): Automotive[/ame]

[PECK]

Originally Posted by cf6mech

Nitrogen is the only thing filled in commercial aircraft tires for a reason......yes its better i.e.......less effected by heat and cold cycling pressure changes....less abnormal tire wear....yes its the only thing I would put in my tires if I had the choice.....thats the catch though.....1...im not going to be seeking a dealership anytime I want tires serviced....2 Im not going to buy/rent bottles.....so pure air it is....

Costco uses nitrogen to fill the tires they sell. Free fill to if your a member.

Sent from my SM-T530NU using Tapatalk

[mav1178]

Originally Posted by bcj

H20 molecular bonds in the tire can be broken by temperature changes.
Then the individual 0 and H molecules take up more space than they did before.

Today I learned that I can separate water into H2 and O molecules just by doing burnouts.

/sarcasm

[Tcoat]

Originally Posted by cf6mech

Nitrogen is the only thing filled in commercial aircraft tires for a reason......yes its better i.e.......less effected by heat and cold cycling pressure changes....less abnormal tire wear....yes its the only thing I would put in my tires if I had the choice.....thats the catch though.....1...im not going to be seeking a dealership anytime I want tires serviced....2 Im not going to buy/rent bottles.....so pure air it is....

They are also aircraft. If anybody here is stressing their tires to the level of aircraft take off and landing and consistently driving at temperatures as low as they are at altitude then I would love to see the build. There is zero advantage to nitrogen filled tires in your normal street driven car. This has been proven time and time again.

[mdm]

Originally Posted by Tcoat

I would love to see the build.

Trying to imagine an FRS that weighs 100 tons and makes an abrupt stop from 170 mph to 0.

[Tcoat]

Originally Posted by mdm

Trying to imagine an FRS that weighs 100 tons and makes an abrupt stop from 170 mph to 0.

Or hits 300MPH for a 1/4 mile or so and then suddenly removes that pressure.
Be quite the car.

[NOHOME]

The green valve stem caps are put on there to let service personnel know that you are gullible enough to pay for such a scam. Or at least set up for the "Conversation" that you must maintain your tires with pure nitrogen so that they can relieve you of more $$$.

God help you if you should ever get some "Air" mixed in with your Nitrogen!

Someone needs to make the agnostic version of this cap.

[Scenic Driver]

Originally Posted by NOHOME

God help you if you should ever get some "Air" mixed in with your Nitrogen!

Totaled

[g e]

I am seeing nitrogen filled tires as an add-on line item at many car dealers, including my Subaru dealer. They didn't have that when I bought my BRZ from them late 2013.

Refuse to pay it.

[strat61caster]

Originally Posted by NOHOME

The green valve stem caps are put on there to let service personnel know that you are gullible enough to pay for such a scam. Or at least set up for the "Conversation" that you must maintain your tires with pure nitrogen so that they can relieve you of more $$$.

God help you if you should ever get some "Air" mixed in with your Nitrogen!

Someone needs to make the agnostic version of this cap.

So many places do it for free it's not automatically a marker for an idiot.

Have heard stories about foolish service people refusing to air up a customers tires because they are green capped and they don't have nitrogen and it would be dangerous to mix the two.

They do, it's a black plastic one, and they're way lighter than the fancy little metallic ones.

Definitely not worth paying any money for it.

[Braces]

Originally Posted by humfrz

Me too.......

YIKES, does that mean that the old air in my tires contains free hydrogen ... ??

What if it ignites, will my tires blow up .....

When I let air out of my tires, should I not have an open flame in the area ... ??

Should I put fresh air in my tires every now & then .. ??




humfrz

I wonder if there is free hydrogen in my farts?

[mdm]

Originally Posted by Braces

I wonder if there is free hydrogen in my farts?

Science says there is. http://gut.bmj.com/content/32/6/665.long

[RichardsFRS]

Originally Posted by g e

I am seeing nitrogen filled tires as an add-on line item at many car dealers, including my Subaru dealer. They didn't have that when I bought my BRZ from them late 2013.

Refuse to pay it.

I bought this car used. It's a 2013FRS. Maybe at one point someone did use nitrogen, but I won't. If I have to use my compressor at home to top a tire, where will the Nitrogen come from? I'll stick with air. Now maybe when I took it to Toyota they indeed did put Nitrogen in them, though I didn't see that on the slip

[mav1178]

Originally Posted by NOHOME

The green valve stem caps are put on there to let service personnel know that you are gullible enough to pay for such a scam.

So I am gullible enough to pay for such a scam, even though the car came with it from the factory when I took delivery of it?

Just because it doesn't work for you doesn't mean it doesn't work for others. Nitrogen-filled is just a marketing thing, but if someone went through the trouble of using only nitrogen in their air compressors, it just means the air will have less moisture and more stable air pressures that don't fluctuate as much when temperatures change.

-alex