'16 real MPG

hycam is optimistic too. funny that some reviewers of gen 4 got same at pump as mfd.

 

Found this on mileage

 

Typical for a Gen III, guess also for a Gen IV

 

If you change the diameter of the tire, your odometer will be off. I use mile marker signs on the highway - count 10 of them for 10 miles and see how much your odo has advanced.

 

Downhill can do wonders for the mpg.

 

That 90 degree temperature in the dead of winter sure helps...

 

I've hit 70 MPG a few times. I'm not that gentle of a driver, but it does great in traffic.

This is going to sound like a stupid question, but I don't know what those acceleration lines mean on the heads up display. There are two of them, blue and green. What do they mean?

I also find that the I prefer to watch the MPG histogram which on the touch screen display, under car to see my current MPG. That influences my driving style more than the HUD.

 

Reached the 500 mile mark this morning. MFD reads 61.7 mpg. Going to work always gets better mpg than returning home. I would see mid 70's in the morning (more downhill slopes) and low 60's in the evening (more stop-and-go traffic).

Compared to my Gen2 Prius (2006), which I drove for 10 years and got about 50 mpg, the percentage improvement is around 20%! Not bad.

 

My improvement from Gen 2 to Gen 4 is also about 20%!

 

I'm starting to really hate you guys.

 

The smaller 'green line' appears to track with the earlier power line in the Gen-3. But the blue 'whish' has me wondering. Perhaps there is something in the Owner's Manual?

I'll check the New Car Features.

Bob Wilson

 

Bought Gas Again!

First fill-up data:
1/22/16 - 650 miles
10.211 gallons (first click)
63.66 calculated MPG
64.9 MFD MPG – <1.9%> Delta

Second fill-up data:
2/5/16 - 675 miles - odometer 1275
10.605 gallons (first click)
63.65 calculated MPG
67.9 MFD MPG – <6.3%> Delta

Third fill-up data:
2/19/16 - 725 miles - odometer 2050
10.571 gallons (first click)
68.58 calculated MPG
72.4 MFD MPG – <5.3%> Delta

All-up data:
2/19/16 – 2050 miles on odometer
31.387 gallons (all first click)
65.31 calculated MPG
68.54 MFD MPG – <4.6%> Delta

 

Your first fuelly entry has no mpg number. Maybe you could add a start entry without numbers like user Earl T Gray for his Prius 4. Then your first fuel-up would be the second entry with mpg number.

 

If he is using the odometer reading, there won't be any calculation for it done. It is the start point for Fuelly to calculate all the following entries. In other words, it tells Fuelly to use odometer reading X for calculating all future traveled distance, since this is the point that it is known that the tank was full.

 

Good question and the easy answer is the 2016 Prius does not need additional instrumentation:

• The green line, total vehicle power, has fallen below the "EV" band as it regenerates and puts a charge into the traction battery. Notice in this case, the 'blue swish' is off because the accelerator is off.

• The green line, total vehicle power, is in the EV mode, power range that the traction battery could power the car. The 'blue swish' is fairly depressed but the car is only responding, at this time, with power in the EV mode range, ~10 kW.

• Here the green line, total vehicle power, is higher than the range the traction battery can provide, ~10 kW. The blue swish has not really changed that much but this is OK. As long as the total vehicle bar is in the ECO range, even with the engine running, the car is in a sweet-spot for total efficiency. The excess engine power will charge the battery and the total energy efficiency is good.

• The video had only a few frames where the green line, total vehicle power, had gone into "PWR" mode. This begins to put the car into less efficient modes and should be avoided for high mileage. In the video, it happened very early and once that fuel penalty is paid, there is no refund. Notice the accelerator "blue swish" is pretty well maxed out.

Bob Wilson

 

The blue line is a guidance line. To save fuel your green line should stay inside the blue. To quote the manual:

"ECO Accelerator Guidance”

A blue zone is displayed in the Eco area which can be used as a reference operation range for using the accelerator pedal according to driving conditions such as starting off and cruis- ing.

The “ECO Accelerator Guid- ance” display changes accord- ing to the driving status, such as when starting off or cruising.

It is easier to drive in an Eco-friendly manner by driving according to the display showing the accelerator pedal operations and staying within the “ECO Accelerator Guidance” range. (P. 209)

The “ECO Accelerator Guidance” function can be turned off in the “Meter Customize” settings. (P. 142)

 

more than 20% for me, my other are SUV's, now that i have reached 1000 miles driving Eco mode, I'm going to try normal and power mode today , do you think there will a significant drop in mpg?

 

You should only see a drop if you ignore the Eco guidance display; hit Wheee! pedal. Or if the motor control of your right foot is too imprecise for the touchier pedal response.

 

The way I look at it is, eco mode is a constant reminder to drive conservatively. With the firmer pedal feel and sluggish acceleration sense.

Normal mode and power mode probably will result in some mpg loss due to the reverse of above as well as the fact that it feels more like a "normal" car which makes most folks drive differently or more aggressively.