what is the bladder all about?

swfoster2 · 10-12-2007, 01:21 AM

Sorry - I guess I should already know this, but what is the "bladder" and how does it differ from a conventional gas tank? Sounds intriguing.......

**efusco** · 10-12-2007, 01:43 AM

Someone posted this earlier (see attachment).
Essentially it helps eliminate the evaporative emissions.

swfoster2 · 10-12-2007, 02:30 AM

That's really cool- thanks! the pics are great too. This is ust one more thing that makes me like my Prius so much...Do any other cars have this type of fuel tank?

patsparks · 10-12-2007, 03:55 AM

It's all part of being a super ultra low emission vehicle.

**Tideland Prius** · 10-12-2007, 01:25 PM

<div class='quotetop'>QUOTE(patsparks @ Oct 12 2007, 12:55 AM) [snapback]524479[/snapback]</div>

Quote:

It's all part of being a super ultra low emission vehicle.
[/b]

Partial zero emission under California regulations... one step below (above?) SULEV.

Ichabod · 10-12-2007, 01:48 PM

Yeah, my window sticker says "AT PZEV" or "Advanced Technology Partial Zero Emissions," which is lower than SULEV, and sounds cooler.

Thanks for that doc, Evan, I hadn't seen that one!

Cheminee, here's a thread with some fun pictures of a Prius gas tank being taken apart: http://priuschat.com/index.php?showtopic=31545

auricchio · 10-12-2007, 01:48 PM

<div class='quotetop'>QUOTE(cheminee @ Oct 11 2007, 11:30 PM) [snapback]524457[/snapback]</div>

Quote:

This is ust one more thing that makes me like my Prius so much..[/b]

With the bladder comes the variability in tank capacity.

It's best to not sweat the "absolute" quantity of fuel in the tank. On my 2006, I know that a half tank takes about 4-6 gallons to fill, which makes sense. I don't bother running down to one or two pips. Nor do I care about trying to achieve a high mileage before refilling---when it's convenient, I fill up. Usually that's at the half-tank time. On the slowest pump setting, I have enough time to wash the windshield.

And I never try to "stuff" more fuel into the tank. When the pump shuts off, we're done. On a few occasions, a pump just won't cooperate: it keeps shutting off and I have to change pumps. A few times, a pump hasn't shut off automatically.

When the last pip begins to flash, you don't know how much fuel is left. The remainder can change with temperature. So all you know is to buy fuel now.

swfoster2 · 10-18-2007, 12:40 AM

Thanks for the link Ichabod- I never cease to be amazed by what the Prius has inside it......

10-12-2007, 01:43 AM	#2
efusco Troll Slayer Join Date: Nov 2003 Location: Nixa, MO Posts: 17,222 My Car: 2004 Prius Model: Package: #9 Thanks: 49 Thanked 245 Times in 145 Posts Friends: 37	Someone posted this earlier (see attachment). Essentially it helps eliminate the evaporative emissions. Last edited by efusco; 02-08-2008 at 09:36 PM.

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10-12-2007, 01:21 AM	#1
swfoster2 Member Join Date: Oct 2007 Posts: 54 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Sorry - I guess I should already know this, but what is the "bladder" and how does it differ from a conventional gas tank? Sounds intriguing.......

10-12-2007, 02:30 AM	#3
swfoster2 Member Join Date: Oct 2007 Posts: 54 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	That's really cool- thanks! the pics are great too. This is ust one more thing that makes me like my Prius so much...Do any other cars have this type of fuel tank?

10-12-2007, 03:55 AM	#4
patsparks An Aussie perspective Join Date: Jul 2007 Location: Adelaide South Australia Posts: 9,052 My Car: 2004 Prius Model: N/A Package: Base Thanks: 108 Thanked 174 Times in 133 Posts Friends: 33	It's all part of being a super ultra low emission vehicle.

10-12-2007, 01:48 PM	#6
Ichabod Artist In Residence Join Date: Jul 2006 Location: Newton, MA Posts: 1,792 My Car: 2006 Prius Model: Package: #7 Thanks: 0 Thanked 2 Times in 1 Post Friends: 7	Yeah, my window sticker says "AT PZEV" or "Advanced Technology Partial Zero Emissions," which is lower than SULEV, and sounds cooler. Thanks for that doc, Evan, I hadn't seen that one! Cheminee, here's a thread with some fun pictures of a Prius gas tank being taken apart: http://priuschat.com/index.php?showtopic=31545

10-18-2007, 12:40 AM	#8
swfoster2 Member Join Date: Oct 2007 Posts: 54 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Thanks for the link Ichabod- I never cease to be amazed by what the Prius has inside it......