How many gallons of gas does Prius v hold?

I've driven about 15 miles past 0 range remaining. Last bar still remained illuminated, have never seen it flash. It took 10.5 gallons. Usually I run it down to 10 miles or less and fill it up, usually takes right at 10 gallons. I suspect that it really is a 12 gallon tank, but Toyota doesn't want you to run it down to actually empty as the last 2 gallons keeps the pump cool.

 

…. (crickets came out at 1:35 pm today)

 

2012 Toyota Prius (not a plug-in)
using one tank of gas (11.9 gal):
TripA distance driven: 911 miles.
TripA gas mileage: 76.5 mpg.

 

Downhill, both ways….

 

76.5 mpg (US) displayed, corresponds to 3 liters per 100 kms: I’d concur, not sustainable.

roll down a hill, flatbed it back to top, repeat.

 

No hills in Southwest Florida.

 

Start a Fuelly account; you'll be leader of the pack (of currently 1,119 vehicles), with your closest rival having 62 mpg US.

2012 Toyota Prius MPG - Actual MPG from 1,119 2012 Toyota Prius owners

 

What a wacky thread about Prius V's. Everyone talking about how far you can drive your car on "empty"..... buy some gas when the gauge gets low. What are ya'll trying to prove ?

 

I love our gen2s but am getting 44 plus mpg out of my 2013 V, and it holds more and is four years newer....

 

When in doubt pull out the manual which says 11.9 gallons. I have put in 11 gallons once or twice after driving 40 miles past zero range.


For those who think they put in 12.5 to 13.54 gallons; quit going to those stations, they are ripping you off with uncalibrated pumps.

 

Some of the excess fuel may of course end up in the canister line of the carcoal absorber, and then it will stop working as intended.

 

So you are saying that Sam's Club and Loves have uncalibrated pumps? Isn't that against the law? Was I paying for 2 extra gallons that were fake?

 

Did the pumps have state/local regulatory compliance decals/stickers? Dated when?

 

13.749 gallons in my Prius V today.

New record.

 

Two extra gallons of fuel on the side?

 

Nope, filled to the brim. I know you're a doubter and that's okay. And yes, the pump had an approval stamp from the Florida Department of Agricultural in case you were curious again. I have no reason to exaggerate, just reporting the facts.

 

As noted above, fill to the brim will cause some to go into the Evap system.

 

Not two gallons, though…

 

'Data' might be a better word there.
The people that actually built your car 14 years ago stated at the time that the fuel tank capacity was 11.9 gallons - but they lie a lot, ESPECIALLY when it comes to MPG which is kinda-sorta related to fuel capacity.
They might also just be mistaken - the normie Prius sedan and the station wagon have different gas tank part numbers - so one might suppose that they have different capacities.

Friend of the forum @bwilson4web has tinkered with this some IIRC, using more exacting weights and measures and an empty gas can.
An engineer, he is nothing if not data driven.
HIS methods for determining fuel efficiency involved using the small gas can and running the car out of fuel - AGAIN, IIRC. reall

If I were really interested in real-world tank capacity for my actual car I would use a similar albeit trickier method of filling all the way up driving to actual empty, and then putting exactly one US gallon into the tank and driving to the closest gas station for the remainder of the fill-up.
You should be able to achieve sub-fluid ounce capacity accuracy which...again "should" be sufficient to the moment.

I would disregard the "danger to the fuel pump" comments because I suspect that it's the fuel inside the pump that does most of the heat exchange (duh!) but the evap contamination danger is for-real.
OTOH, you live on free soil so there are work-arounds for that and if you decide to DIY the repair, it's a sub-$100 fix.

Besides......a 14-year-old car in Florida without a CEL is about as common as a teenager without a smart phone.