New 2026 Prius LE low MPG

My 2917 Prius 2, on average, exceeded the EA number of 52 combined. My 2025 Camry, which a 5th Gen hybrid, did not have its true fuel economy until after about 1300 miles. I now regularly exceed its combined 48 mpg rating.

 

how are you measuring mpg's, calculated at the pump after filling the tank? is it the first dealer tank?
no, it won't go up if something is wrong, without correcting it.
but if you've made a calculation error, or incorrect assumption, yes, it will go up.

 

1. it's cold up there
2. car/engine hasn't broken-in yet
3. it's still under warranty

Go though a couple tanks of gas before jumping to conclusions. It is heavier, larger, with a larger engine than your 2017.

Good Luck.....

 

Maybe try using real numbers.

I always use tank averages calculated at the pump.....by ME.
If I read the OP correctly, you do not even have ONE tank's worth of miles in this car - and you've driven a lot less than a half-tank's worth of miles in my GMC pickup.

You should wait until the kid is out of diapers before picking a college......

 

Almost 5000 miles on my '26 LE.
I've found my actual mpgs are generally 2 less than the car says.
I always fill up when empty-ish.
You have very little miles on it to come to any conclusion at all.
Winter is tough (see my thread on the subject).
I've got 61.6 on the car computer right now over a half tank gone.
I've been freezing my nice person off, to a degree, turning off the heat, since it's been warmish, in my quest. It's 8 F here this morning so, I don't know....

 

Gotcha.
Give it a few tanks before panicking.
Calculate gallons pumped and miles driven, then report back.
All the best!

 

nice person? lol.