Two cars that come from the factory with excellent compressors.....

Pontiac G8s didn't come with a spare in the US. Just a can of fix a flat and a compressor. I picked up one of the compressors in a junk yard and it works great.

Also later model Dodges. Or Chryslers. They have a compressor that has a can of flat fixer built in, but if you use the can they are $60 to replace. So I have never used the can, I just flip the switch to 'air' and they work great.

These show up on Ebay, or at any wrecking yard that deals in late models.

Ah, HA ! I went to the Bay of E. and searched 'Pontiac G8 tire inflator' and got this : https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=pontica+g8+tire+inflator&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=pontiac+g8+air+compressor

Here are the results for 'Dodge tire inflator' : https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=dodge+tire+inflator&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=pontiac+g8+tire+inflator

I bet if you take note of the Dodges and look n your local LKQ's website, you'll find a Dodge, Chrysler or Poncho G8 you can get this inflator out of far cheaper than E-Bay .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Take a look at this if you are already using DeWalt 20 volt cordless tools.
https://www.amazon.com/DEWALT-DCC020IB-20V-Inflator-Bare/dp/B07H39S9JQ/ref=sr_1_1?crid=28JBLQYXBISVT&dchild=1&keywords=dewalt+20v+air+compressor+tire+inflator&qid=1628791258&sprefix=dewalt+20v+air%2Caps%2C197&sr=8-1

The really nice feature is you set the desired pressure, say 32 psi, turn it on, and when it reaches 32psi it shuts off.

I hope that you boys aren't ruining your Mercedes by using non-German air in those tires...

My 1970 6.3 had a metal plate inside the gas door that gave tire pressures for over 100 mph. Hard to believe that was over 50 years ago.

I have also used a cheap plastic China compressor that plugs into the cig lighter socket. Works fine but gets way hot.

I remembered this thread when I was in Big Lots (previously Pic 'N Save) and found these for $5 .

Wow .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

use helium, makes car 1000 pounds lighter

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran

Plus the tyres giggle instead of squealing!

__________________
"I applaud your elaborate system of denial"

no thats nitrous oxide

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran

The local COSTCO has nitrogen .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Always figured rip off. Atmosphere is about eighty percent nitrogen.

Worn out quite a few cheap 12 volt tire pumps over the years. Perhaps those pumps that come with the vehices are better quality.

Lawn tractors and toys with pneumatic tires. I always seem to have one that loses some tire pressure sitting around.

Nate - unable to see the 12v tire inflators. Did you include a pic?

No ;

I'm blocked from any attachments whatsoever .

I was in the store and saw it and checked the price, I was stunned as I'd paid $10 for the one I've been using some years now at the junkyard .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

One of the minor benefits from N2 in tires is that it leaks out slower than O2 or H2O vapor, because N2 molecules are larger. Consumer Reports did a quick test showing that pure N2 leaked out at a rate about 20% lower than air.

That means that what leaks out of a "slow leak" is largely O2 or H2O. So, as you regularly top off a tire as it leaks down, the air inside the tire becomes more "nitrogen-ier."

Helium (He) atoms are tiny compared to the common atmospheric molecules, and would leak out rapidly. That's why He is used to test for leaks.

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Thanx ! that's interesting .

I always learn new things here, better than trade school .

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better