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Thoughts on portable air tank 5 gallon for tires #4580664
11/21/17 03:16 AM
11/21/17 03:16 AM
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
901Memphis Offline OP
901Memphis  Offline OP
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
I am thinking about getting a 5 gallon portable air tank to keep in my trunk for filling up tires. Does anyone have experience on how many times you can typically use them to top off low tires before they need to be refilled? The one I was looking at is 5 gallon and holds 125 psi. I seem to find my tires down to 20 psi and I usually add to around 35 psi... Any idea how many times I can do that?

This is one I'm looking at. Or one similar. Speedway 7296 5-Gallon Portable Air Tank https://www.amazon.com/dp/B003Y3BRKW


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580665
11/21/17 03:19 AM
11/21/17 03:19 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
I use a bicycle pump on my tires. Takes me about 10 pumps per psi.

Re: Thoughts on portable air tank 5 gallon for tires [Re: Merkava_4] #4580669
11/21/17 03:33 AM
11/21/17 03:33 AM
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
901Memphis Offline OP
901Memphis  Offline OP
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
Originally Posted By: Merkava_4
I use a bicycle pump on my tires. Takes me about 10 pumps per psi.


Umm no


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580673
11/21/17 03:49 AM
11/21/17 03:49 AM
Joined: Jan 2003
Posts: 3,203
Southeastern, PA
Rick in PA Offline
Rick in PA  Offline
Joined: Jan 2003
Posts: 3,203
Southeastern, PA
I've got a 5 gallon air tank and a little "shoe box" Black & Decker air pump. It suits my needs. I usually pump up the tank to around 60 psi, the little compressor struggles a bit beyond that pressure.

I can generally top up the tires on 3 cars in the driveway with the fall seasonal air pressure drop, generally 3 to 5 psi per tire, before recharging the air tank. I'll give the air tank a full charge before topping up the spare tires, spring and fall.

Sometimes I'll use the set-up with a blow-off gun for little jobs like blowing out spark plug cavities before removing the spark plug. The blow-off gun works OK for small jobs.

The tank's not too bad to lug around the cars. I don't have a heated garage (you get water in the bottom of shop sized compressor tanks) and I never felt the need for a full sized compressor. The small tank never seems to accumulate water. I've turned it over and vented it, but no water comes out.

For filling a tire out on the road in an emergency situation, I'd consider one of those small 12v air pumps. A dinky air pump will get the job done, it just takes time, maybe 10 or 15 minutes. I've got one of those in the trunk of my car.

Just my experience.

Last edited by Rick in PA; 11/21/17 03:54 AM.

A wise man told me:
"Heat is your friend." and "Any oil is better than no oil."
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580674
11/21/17 03:51 AM
11/21/17 03:51 AM
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
901Memphis Offline OP
901Memphis  Offline OP
Joined: Aug 2010
Posts: 12,906
Northern Kentucky
I have a gas station with free air, and the compressor they have is very fast, so I was thinking it would be easier to air up a tank and keep it close than to drive to the gas station every time I need air.


2012 Chevy Cruze LT 1.4T - 50k
2002 Buick Century 130k - Built 4T65e(Maxlife) - Edge 0w40 + Fram XG3980
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580676
11/21/17 04:01 AM
11/21/17 04:01 AM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: 901Memphis
Umm no


It's good exercise dude. Where's your sense of athleticism ? grin2

Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580685
11/21/17 05:20 AM
11/21/17 05:20 AM
Joined: Aug 2014
Posts: 377
DFW
Timo325 Offline
Timo325  Offline
Joined: Aug 2014
Posts: 377
DFW
Memphis,

Do you not like (or unable) to use the 12v plug type inflators?

I don't know how long a 5 gallon would hold up with 125 psi starting, but I would bet it wouldn't be very long.


2011 Odyssey Touring Elite 80k mi. M1 EP, 0W-20, FU
2008 Mustang GT 81k mi. Edge EP (Gold) 5W-20, FU

Re: Thoughts on portable air tank 5 gallon for tires [Re: Timo325] #4580688
11/21/17 05:38 AM
11/21/17 05:38 AM
Joined: Nov 2008
Posts: 3,292
Oshawa, Ontario Canada
JC1 Offline
JC1  Offline
Joined: Nov 2008
Posts: 3,292
Oshawa, Ontario Canada
Originally Posted By: Timo325
Memphis,

Do you not like (or unable) to use the 12v plug type inflators?

I don't know how long a 5 gallon would hold up with 125 psi starting, but I would bet it wouldn't be very long.



Plus the air will usually leak out if left for a while. Still a good idea to get the compressor.


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Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580694
11/21/17 05:55 AM
11/21/17 05:55 AM
Joined: Jun 2013
Posts: 1,126
iowa
Traction Offline
Traction  Offline
Joined: Jun 2013
Posts: 1,126
iowa
I wouldn't get a 5 gallon tank since the 11 gallon tank I have can barely fill 1 flat tire. The 11 gallon tank would be much more useful with double the volume, but even then it doesn't take much to run it down to 30 psi and then it's pretty much empty. I just sold my pickup that had a 80 gallon tank inflated to 160 psi. That would fill a lot of flat tires, and run air tools. I miss it now since it wouldn't fit in my Tahoe, and now all I have is a 11 gallon tank, which is helpless in comparison.

Last edited by Traction; 11/21/17 06:00 AM.

Certified Tire Service Instructor since 2009
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Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580713
11/21/17 06:20 AM
11/21/17 06:20 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: 901Memphis
Originally Posted By: Merkava_4
I use a bicycle pump on my tires. Takes me about 10 pumps per psi.


Umm no


Umm yes

But IIRC its about 20 strokes with mine, or maybe 25

I'm on the lookout for a discarded propane cylinder to try as a tank but so for no luck. Did see one but when I went back with transport it'd gone. Scrap scavengers are pretty quick around here.

Re: Thoughts on portable air tank 5 gallon for tires [Re: Merkava_4] #4580731
11/21/17 06:50 AM
11/21/17 06:50 AM
Joined: Dec 2002
Posts: 42,301
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,301
New Jersey
Originally Posted By: Merkava_4
I use a bicycle pump on my tires. Takes me about 10 pumps per psi.


Agreed. This is the most portable solution.

If OP finds tires at 20 from 35, the root cause should be found..

I'm not seeing how a finite volume of stored air, at relatively high pressure, is a good idea.

If anything, buy a vlair 88p or similar, which attaches to the battery and can pump up a tire readily. Smaller and not restricted like an air tank.

Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580736
11/21/17 07:00 AM
11/21/17 07:00 AM
Joined: Feb 2003
Posts: 7,689
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,689
Jupiter, Florida
A 5 gallon tank will not bring 4 large tires from 20 to 35 PSI.

I think a better suggestion is a quality 12V pump that runs from a 12V outlet, not one of those battery powered jobs.


People who count on their fingers should maintain a discreet silence.
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580749
11/21/17 07:15 AM
11/21/17 07:15 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,825
Taiwan
The 12V things always burned out on me, though maybe an expensive one wouldn't.

If I was doing a lot of this (say desert or beach driving) I might try and get one of the spark plug hole pumps, though I dunno if they are still made.



http://www.aerostich.com/tools/tire-repair/pumps-air-compressors/engineair-power-pump.html

For my current use the bike pump is simple, cheap and reliable.

Last edited by Ducked; 11/21/17 07:29 AM.
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580752
11/21/17 07:16 AM
11/21/17 07:16 AM
Joined: Mar 2004
Posts: 21,121
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 21,121
Upstate NY
Typically if a tire needs air its got a leak and adding air may only help for a few minutes. The instant spare tire in aerosol can works.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Thoughts on portable air tank 5 gallon for tires [Re: 901Memphis] #4580756
11/21/17 07:20 AM
11/21/17 07:20 AM
Joined: Jun 2003
Posts: 17,820
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,820
Deplorable in apple valley, ca
Get a bigger tank. Harbor freight sells an 11 gallon one.


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