EPA 2-Cycle Raw Data: 2017 Prius Prime

how can any test accurately portray what one particular driver will get for mpg's? after all, even the members posting here are all over the board with the same car.

 

I totally agree.

 

best you can hope for is a realistic comparison between vehicles. but they all perform differently under different driving conditions.

 

I do not see this as absolute mpg's. By using the same test for various models and manufacturers, you can make a reasonably sensible decision about who does what. I have consistently gotten much better mileage than the EPA rating on both my Gne2 and Gen3, as have many other drivers. At the same time, there are owners getting worse mileage. It depends on driving style, type of roads encountered, weather, etc. Use the EPA for comparisons and, if you are so inclined, use your own skills to maximize your individual mpg's.

 

I am also interested in the raw data as being best for comparisons between various cars, so thanks for sharing.
You do not need the raw data to calculate usable battery charge, you can calculate it from the sticker data:
33.7/133*25=6.33 kWh from wall (i.e. before charging losses).

Here are the EPA ultimate target bars to beat:
City: 6.33/0.1626=38.93 EV miles.
Highway: 6.33/0.1952=32.43 EV miles.

 

Oh, you want bureaucratic mode, shift into "B".

When I bought my first Prius, a used 2003 in Texas, I headed for the Louisiana border 50/50 like I stole it and keeping up with Texas drivers. In Shreveport I calculated 39 MPG and briefly thought about turning around and returning the broken car. But then I realized the EPA bureaucrats got 45 MPG so what is going on?

The next leg, I got 54 MPG by driving 60 mph and on that trip home learned there is a 'knee in the curve': at 65 mph getting 52 MPG; at 70 mph, it only gave 49 MPG, and; 75 mph, 39 MPG. I never looked back but decided I could do at least as good as any EPA bureaucrat.

Bob Wilson

 

otoh, i have never achieved more than 17 mpg in my dakota, no matter what techniques i employ, which is rated for 20 mpg.

 

or keep the same range, and claw back the hatch floor.

 

Actually 36 EV miles based on the raw data you have posted and 55% city, 45% highway driving.

 

I've been poking around on the Forum. I'm a Noob. I don't understand how I achieve 133 MPGe. Do I do that by driving in "EV Auto" mode?

Would I then get 133 MPG on the first gallon of gasoline starting out with a full charge?

Forgive me if this is a stupid question...

 

I spoke too soon... I just found this:

 

Thanks!!

Posted via the PriusChat mobile app.

 

Wow I think I need a prime at some point after they enter the used market in a few years.

Our v (wagon) just isn't cutting it. I thought I could do significantly better than the EPA. However, lugging all that extra weight around ( vs the liftback ) really takes it's toll. In fact, I removed the rear seats in prep for an upcoming road trip. I didn't weigh the seats but they were pretty dang heavy! We have lightweight camping gear too so hopefully it will make a little bit of difference. We'll see!

 

Double click the chrome icon! that’s good.

It’s all Mpge, always. Even if you run out of charge, the car immediately starts charging and very shortly starts using again. The 199.9 is purely theoretical, it basically means infinite. The most realistic window is past averages, which in my case is always 150mpg, really: 150 MPGe. they omit the e, but, it’s always there.
That 150 average for me is easy as my daily trip is mountainous, about 1300 feet. so I regain what has been used, free, or I charge if needed.

 

The EPA's MPGe estimates are not infinite in EV mode, though. They are using an established formula to decide how many kWh are equivalent to a gallon of gas, basically. The calculation the Prime does for MPG on the dashboard does in fact compute "infinite" (199.9 or 999.9) when you are using *nothing* but EV mode.

 

Remember these figures are all pretty much theoretical, all numerology. Even tho all my consumption bars are showing 150mpg, my average is 172 mpg. My total range was almost 1600 miles for the tank with one pip left. 1600 miles / 7 pips = 228.57 mpg. You see all these figures have a large variance between them.
Now if I hand calculated at fill up, I’d get another figure. I’ll accept any figure, I’m happy. The cars phenomenal! And it will only get better.