I was having the same mileage on my platinum for the first couple tanks until I took a road trip and now I get anywhere between 18-20mpg in the city. I mainly drive in Eco and I seldom accelerate hard.

 

I'm in my 3rd month of ownership of a 2021 Highlander V6 AWD Platinum. The majority the 2510 miles on my vehicle has been in the city and I'm currently averaging 19.1 mpg. As JoweezyCam12, I mainly drive in Eco and rarely accelerate hard.

 

Althought I find your MPG too low, in my experience I was averaging low MPGs too initially, but after the break in I am between 21 to 23 MPG per tank. Personally I use the calculation per tank fill up instead of the whole time historical option. I might recommend you to switch the calculation to per tank fill ups. There also an option of calculation per trip. Is on the instrument panel menu.
Also, in my case I have too much start and stop traffic, and hills. I have found that driving in normal is better that ECO because you are taking full advantage of the engine HP and the transmission shifts. The HL is a big vehicle and what ECO does is shifting the transmission to the higher years faster to supposedly improve economy, making it slower and sluggish. Also, try to do less the start/stop thing if you know that the stoplight will not be in red more than one minute.
The MPG will improve with your next oil change and end of the break in.


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I have found that driving in normal is better that ECO because you are taking full advantage of the engine HP and the transmission shifts. The HL is a big vehicle and what ECO does is shifting the transmission to the higher years faster to supposedly improve economy, making it slower and sluggish.

That's interesting. I'm going to have to try using Normal mode rather than Eco mode for a while and see if I can raise my mpg at all. Thanks fort that info.

The MPG will improve with your next oil change and end of the break in.

Also interesting. I've not yet had my 1st oil change, although I am past the break in period.

 

I'm always the low mileage guy, I pass the award to you. Short trips and many stoplights are what can kill mileage. I get 17-18 in town. I'm not a lead foot but I don't baby it (2020 Limited). On the highway it really depends what direction the wind is blowing, your 25 mpg is roughly in the middle of the normal range, you could get 30 if you're lucky at 70 mph and a strong tail wind.

The 13.9 is low for town IMO. It can be much worse in winter due to gas blends and cold temps. and warming car up before you get in it. 13.9 is full size pickup truck numbers so it's low for sure. If it's heavily loaded with people or gear that does not help either. I'd wait until the weather warms and the gas blends go back to summer blends and then recalculate over 10 takes and see where the numbers are.

I don't think ECO mode helps, your right foot is the regulator. Not sure if this is helpful but I do track my usage on every vehicle I've ever owned and mileage in winter always dips. Things that help the most are don't prewarm (autostart) car before you drive and minimize stoplights. Keep your tires at 35 psi is helpful too.

 

That's about what we get in our small town, almost all stop and go. 2017 Platinum, but I think we have the same V6 engine. We about always drive in ECO mode, and use the autostop if waiting at stoplights. 25 on the road. We're looking and testing both the V6 and hybrid, and I would expect the same crappy mpg from the V6. Which by the way is almost the identical number as my past Corvettes and my current LC 500.

 

I use the fueleconomy.gov website and enter every fill up I get religiously. I pay no attention to what my car says about mileage, as I have found it to be inaccurate most of the time. I drive my car gently and anticipate braking, and my average mpg has been 24 mpg in town. I did get 28 on a highway trip once, but for an XLE AWD with V6 I think it’s pretty good.

 

Wow, that's great! Congrats.
I've not heard of the fueleconomy.gov website. I'll have to check it out.

 

Getting the best MPG on any vehicle is always depended on your driving abilities. If you have seen the movie Driving Miss Daisy and you drive like Morgan Freedman did you would see the top end of your the reported MPG your vehicle can get it, however if you heavy accelerate, don't drive at or just be the speed limits on city streets or the highway, etc. you will get back bad mileage on a tank of fuel. It's always been the misconception of people who read the city/highway MPG or L/100KM on the vehicle sticker that regardless of their driving style they will get those numbers. City/highway in the US is based on 30MPH/60MPH in the USA, while it's 50KM/100KM/h in Canada.

 

...City/highway in the US is based on 30MPH/60MPH in the USA, while it's 50KM/100KM/h in Canada.

Actually it's much more complicated/sophisticated than that. The tables on this page show the EPA testing methodology for each of the MPG ratings (click the tabs along the top for each scenario).

Detailed Test Information

 

...we do deal with hills around,...

Hills kill mileage. Going downhill will not get back the extra fuel expended going up.

 

So one of the things the EPA asks the manufactures to calculate for is driving in hilly areas. So the US MPG on the Highlander is covered already.

 

City 11 to 13 average during winter months, 16-20 warmer months and 25-28 highway.

2020 HL Limited AWD 22,000 miles so far.

 

On our recent road trip from Jasper to Helena Georgia...up and down mountain roads, 5 adult passengers, Normal mode and comfortable A/C...got 22+ mpg. From Atlanta GA to FL, 2 adults, comfortable AC, ECO mode...got 30+ mpg.
From my experience, some gas stations (esp on the highway exits) don't dispense the right volume of gas. I know they are all calibrated but I don't believe it because our in-town favorite gas station our mpgs are spot on but when on a road trip, mpgs suffer.

 

FWD or AWD ?

 

? I average 17-20 in mostly city driving (60,000 miles on it now) and get 26-28 highway

2020 HL Limted AWD