The add-fuel light came on yesterday. So I went another 100 miles before I decided to fill up the tank. Total miles on this tank of gas was 1620 miles. The tank took 9.46 gals to fill. This works out to 171.2mpg.
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25 Responses to “171mpg in Prius Plug-in Hybrid Electric (PHEV)”
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Can’t wait to do this with my future volt…if I drive 25 or so miles per day I should average 5,000 mpg and 4.5 miles per KWH…not bad…
Whate were the overall conversion costs? I am planning to buy a 2006/07 Prius and this possibility would be exciting for me!
what that heck lol i get like 20 mpg haha on a good day lol thats way MB don make hybrids
The conversion was done almost 3 years ago by Hybrids Plus in Boulder CO. They are now known as Eetrex. They replaced the prius 1.3KW hr battery with a a 9KW hr battery made from A123 cells. Half of the pack sits under the back seat where the prius batter was at. The other half takes up part fo the hidden open space under the rear cargo area. I still have the original spare tire and all of the rear cargo area intact.
Oh my god that is fantastic! Can you please upload a video showing you converted boot. How big are the batteries? 4Kw? 2Kw?
a plug in prius usually has extra batteries added, and the speed at which the electric motor engages is increased. So if you only drive in short, slow trips you can recharge it often and almost never have the engine start up.
I suspect our cars work the same for EV mode. My car trips out of EV mode at 35mph. And, when coasting or at low power needs the gas engine part always comes on at 41 mph even when I have a fully charged battery. I have read that this is the same worldwide for the series II Prius.
Wow… the Prius’ I’ve driven (in Australia) cut out of EV mode at about 45km/h
Yours is set up differently then??
Nope, this car does not have modifiled electronics to allow it to run faster on electric only. See my other videos where I demonstrate this fact.
If you recharge the batteries from mains power, instead of relying on the petrol engine to recharge your batteries…. AND you drive short enough distances that you can drive almost always on electric not petrol power, then you can get MASSIVE petrol mileage.
I suspect this car also has modified electrics so it can run on the electric motor at above the normal factory prius motor speed limit.
wait i dont get it. So its a plug in prius? how does that work? explain to me how a plug in prius get 171.2 miles per gallon. message me back, im actually really interested.
thats fanstatsticaly cheap in terms of cost, not talking about the cost of a condition the car to get that. i would like to have a car like yours. but when i get money
I average 52mpg in my 06 Prius which travels 75 miles per day, and it’s just a factory non modded car (no plug in).
This is also mostly highway use.
I find it hard to believe that they only got 51 mpg if they were actually plugin cars.
cool
There were many factors that made an impact to the results in the Seattle study. For the rest of use the results will be much higher. here are a few factors that caused their numbers to be low.
1) They did not have EV buttons.
2) Fleet cars are driven often during the day and often for more than 40 miles. Commute cars are driven twice a day and often for less than 40 miles.
3) When you have to pay for the gas you can learn to avoid the 20-40% fuel economy hit for agressive driving.
Seattle has a fleet of 12 plugin prius hybrids. They report only getting 51mpg. They also say that the battery was dead a third of the time.
You can’t expect normal people to practice effiicient driving techniques. Nor can you expect them to take out the seats and flooring to reduce weight.
Awesome video! I have a 2005 prius with HOV stickers. I want to convert the car to plug in and add solar panels across the top. Once I get the money I will do it. This is totally inspirational
any updates? where is the link to getting on of these kits for my prius?
That screen is saying that in the last 30 minutes the car generated 375whr of energy from regenerative braking. It is also showing that in the previous 30 minutes I was averaging over 100mpg. By the way, that was on the freeway.
How do you read that screen?
Is that saying in 1620 miles you regenerated only 375 Wh?
I recharge the battery everyday. My typical cost to recharge a day is $0.15. And, I drive 60 miles a day.
The cost of my electricity does go up a little. Right now I’m paying over $3.50 a gallon for gasoline to go about 50 miles on that energy. The equivalent energy in electricity is about $0.80. So, my energy costs per miles driven has gone down dramatically. However, the cost of the system is still expensive. The price is coming down.
How many times times you charge the battery?
How many times you charge the battery?
Got a question, I have a Prius, wish to get that technology, but would charging the battery add the cost to your electric bill significantly? If not, SIGN ME UP!