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garygid
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 8:45 am

The TPMS on the 2010 Prius only shows a warning when the pressure is "quite" low, depends upon what pressure was there when they were "set". It is basically useless for keeping the tires "topped up".

Yes, I would like to see the actual pressures, or % of the "set" pressure, to see when I need to "top-up".
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 8:47 am

The Tesla Roadster displays BOTH pressure AND temperature of each tire 8-)
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Bicster
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 8:53 am

I once had an aftermarket system that would show the pressure in each tire. It worked fairly well but it was a pain to re-program it when tires were rotated. Eventually a tire shop broke one of the sensors and I gave up on it. The newer systems are much better.
Reserved on April 20, 2010 - Never purchased

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evnow
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 9:45 am

Can you guys recommend a decent (and inexpensive) compressor ?

Filling it up @ gas stations is a pain.
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mwalsh
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 9:57 am

evnow wrote:Can you guys recommend a decent (and inexpensive) compressor ?

Filling it up @ gas stations is a pain.


Probably not me...I have one that's a little much for just filling tires.
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Bicster
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 9:59 am

evnow wrote:Can you guys recommend a decent (and inexpensive) compressor ?

Filling it up @ gas stations is a pain.


About all I can suggest is to look at reviews online (eg Amazon). The tradeoff between oil-free and lubricated units is that the oil-free ones are less maintenance but 10x more deafening. Mine requires synthetic oil.
Reserved on April 20, 2010 - Never purchased

JasonT
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 10:04 am

evnow wrote:Can you guys recommend a decent (and inexpensive) compressor ?

I'm guessing you'll get different answers, but I I am currently using the Black & Decker ASI300 (http://www.amazon.com/gp/product/B000IE0YIQ) and love it. It will run off of AC or DC, and can be set to stop inflating after it hits a certain pressure.
It has two possible downsides:
  • The AC cord is very short. You pretty much need an extension cord to use this.
  • The gauge is not very accurate. It's consistent, but you can't expect 20PSI on the gauge to actually be 20PSI. This means you need to do a little experimentation for the "stop inflating" feature to work the way you want it to.

I knew both of the above going in, and never found it to be a problem. It's loud and a little slow, but it gets the job done. I really like being able to plug it in to use it at home, but also having the DC option for 'emergencies'

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LTLFTcomposite
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 10:12 am

Before you rush out and get something that's only suitable for topping off tires, consider some of the other useful things you can use it for... brad nailer, stapler, blow gun, paint sprayer, etc. Something with a tank is handy since you can run it to fill the tank, then take it somewhere away from AC power perhaps to blow up a flat tire on a stranded car.

I've had one for 25 years and used it to death.
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 10:16 am

Oh, on the subject of DC powered portable compressors - they're all crap (cheaply made, loud, slow) but they should last for years of normal use. The built-in gauges are worthless on all of them. I keep one in my trunk at all times.

I have an air chuck for my big compressor that has a built in gauge, and that's worthless, too. You always need a good, separate tire gauge. Preferably an analog one.

Also keep in mind that the bigger AC powered compressors shouldn't be stored with a pressurized air tank. The tanks are cast iron and the pressure accelerates the corrosion process. That's why I keep a cheap ($30) air tank filled up and drain the air and water from my compressor after each use.
Reserved on April 20, 2010 - Never purchased

mitch672
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Re: While you're at it put an air hose on the EVSE

Thu Jun 03, 2010 10:30 am

LEAFer wrote:The Tesla Roadster displays BOTH pressure AND temperature of each tire 8-)


Great, I think I'll save the $70K+ and still buy the Leaf, even iit doesn't have a fancy TPMS.

I bought an external TPMS for my Gen II Prius that worked pretty well and did have tempeture and pressure monitoring as well, but you have to install the sensors with "straps" to the inside of the wheels, cost $250 at the time (2004)... I gave it to the dealer when I traded it in for my Gen 3, wasn't worth the money it would have cost to remove the 4 sensors, etc. The TPMS is only to warn very "unobservant" drivers, most of us should be/will be checking the tires weekly...
Last edited by mitch672 on Thu Jun 03, 2010 11:16 am, edited 1 time in total.
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