Hi and sorry if my question is dumb

That's assumed. As soon as you say you're driving a PIP, it is understood by all that your mpg values are going to be off-the-charts.

 

All the data exists for the car to be able to tell how much energy you are using to propel the car, but Toyota hasn't programmed the car to show this. Seems odd, but perhaps the marketing angle of skewed mpg numbers is the goal. "Look at this, I'm getting 107 mpg in my new car."

The data they need to provide an energy consumption figure - miles driven, gasoline consumed, power provided from the wall, power provided by regeneration, power taken from the HV battery. All of this is known.

 

Regarding accuracy of mpg....all I know is that after a little over 1976 miles I've went through a little less than 1.5 tanks of gas and about $18 worth of battery charge costs...in 30 days.

1976 ÷ 17 gallons = 116 mpg + $18 for charging. All really approximate, but close to the 90 mpg that the dash says.

 

80-some MPG is pretty good. Obviously a lot depends on electrical costs that vary by location.

 

It's not even that it's off that charts. It's not comparable to anything, and it's basically a meaningless number. For example someone who does a lot of long trips will have a low MPG. But someone who does a lot of short trips will have a high MPG because they are mostly in EV. So it's no longer useful and a measure of efficiency, and only sort of useful as a measure of how much EV driving you do. I just don't keep track, it's an efficient car no matter what.

 

Completely agree. On long road trips with no external charging, 55-65 mpg is typical for me. Around town it can be 999.9 on all EV, or anywhere between 65 mpg and 999.99 mpg, depending how much energy came from the wall socket (energy that is not included in any of the displayed mpg calculations).

 

just to add, we convert our air miles to Shell gas $ so most of our gas is free also!
Best move I ever made buying this as a second car....which has now become our first car.

 

When I bought the Prime, I kept my 4runner and planned on using it for weekend trips. A year later I don't like driving the 4runner (it's more exhausting to drive and not a comfortable ride), I hate how much gas it uses (17 mpg), and so I barely use it at all. I drive it in circles twice a week just to keep from getting a parking ticket. I would sell it, but rental car companies don't let you drive off road or tow things, and I do use the 4runner for that occasionally. And keeping it is probably cheaper than selling it and selling the Prime and getting a PHEV SUV.

 

2022 Prime that is 1 month old. Have 4300 km on it and avg. fuel consumption is 2.5 litres per hundred km or 113 mpg. I charge once daily, missed maybe 3 days.
Full charge cost .84 cents where I live, Nova Scotia, Canada.
Gas here is 2.05 per litre! With that being said, I am delighted with my new base model PP.
My driving is a combination of highway, rural, and almost no city. The area is very hilly and windy.
One query I have to those experienced folks out there that I read there comments frequently.
My car does not seem to the locking mechanism to lock in the charging cable to prevent possible theft.
Also I am struggling with setting the schedule for the charging departure feature.
Overall I love this Vehicle!

 

The car is smart. It's smart enough to do a great job of controlling itself. Set it for EV and forget it. It'll switch itself to HV, hybrid vehicle mode...part battery & part engine, when it needs to, and switch itself back to EV when there is some charge in the battery. You do not need to fiddle with buttons or switches or any different driving behavior, especially in your traffic. Eyes on the road and the traffic. (1) Drive safely, (2) Drive courteously, (3) Drive economically---in that order.

Mode does not equal mode. EV, EVAuto, and HV modes are engine and battery operation. I never switch to HV, the car does it itself. EVAuto lets me save a sliver of gas on a certain route I drive which has hills. It runs the engine up hills and battery on the flat. Don't worry about it.

ECO, Normal, PWR modes are how much giddy-up you get from a partial push of the accelerator pedal. We run normal around town and use PWR on the freeway for more scoot to slide into an opening in traffic. Again, set it and forget it. Don't take your eyes off the road to fiddle with this.