Real World MPG with 5th Gen?

Wow, I just did a 500+ mile round trip this weekend. 75-77mph and got 18.7MPG (18.8mpg on the return leg). Temps were above freezing and no noticeable headwinds, but it is a hilly drive. Very impressed with my fuel economy on this trip given "winter gas" but unsure why I haven't got this low in a long time. Also rolling on the 17" Michelin X-Ice Xi2s. I started to wonder if tire diameter impacts fuel economy?

I did half of this drive 2 weeks ago and was under 16mpg and worse and still had the OEM 20's on. Slightly colder temps. Kept it at 75mph max the whole drive. I guess wind varies fuel economy more than I thought. I always just assumed it was the hills and partially the wind.
 
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I'm struggling to get over 15 on my TRD but it's still my barely out of brake in period so that usually shows lower mpg
 
1100 miles
16.1 MPG average
Changed over to 17" BFG E Load KO2's at 420 miles.
Added 3" Toytec lift at 460 miles.
 
I just calculated mine the other day after a lift and new tires. I have an Icon Stage 2 (3" lift) with 285 Load E Toyo Open Country AT II tires at 46PSI. I'm getting 16MPG with probably 70/30 highway/city driving. That's better than I thought I would get.
 
about 1900 miles in and I am at an average of 21.29 miles with a low of 19.92 and high of 23.56. Its mostly in the city but I always drive off peak hours because of my work shift. Mine is all stock for now, so not sure how the mods will affect it.
 
about 1900 miles in and I am at an average of 21.29 miles with a low of 19.92 and high of 23.56. Its mostly in the city but I always drive off peak hours because of my work shift. Mine is all stock for now, so not sure how the mods will affect it.

:wow2:

How in the ........ Do you keep the throttle below 1500 RPM (in the eco zone)?

How is that possible? I have almost 1100 and the computer still says 12.8 mpg... going for a long drive tomorrow so hopefully that will improve sigh.... :violin::noidea:
 
:wow2:

How in the ........ Do you keep the throttle below 1500 RPM (in the eco zone)?

How is that possible? I have almost 1100 and the computer still says 12.8 mpg... going for a long drive tomorrow so hopefully that will improve sigh.... :violin::noidea:

don't get fooled, 20+ MPG is impossible in -real- city driving. He must be driving some kind of a suburban area, with lots of 40-50MPH stretches with sparse stoplights.
 
20+ is not impossible, until i put my 285's on, i was getting 20+ on avg in town and 22+highway, right now i am getting 18.5 with the 285 duratracs,
 
Flat suburban/ex-urban Phoenix like [MENTION=84331]diverscale[/MENTION] suggests. 20mpg is possible on the highway at 75mph but you need flat roads and no noticeable headwinds. Stop and go city is more like 17max on a GOOD day. I average about 17.5 in the warmer months in my day-to-day commute. "Suburban" with a few hills and some traffic lights with usually 3 stop-and-go's over the 5 miles each way.
 
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Even I can't get more than 19 in my city driving. More like 17-18 and those are easy miles; 1 or 2 stop signs per mile or so and 25-35mph limits.
Not like LA where you sit at a stoplight for 5 mins every block then drag race to the next one.
 
My driving is 70% highway but still I am getting 17.1 to 17.7 avg per tank of gas in my 2014 TRD w/31k miles. I'm figuring these numbers the old fashioned way. The onboard computer always shows higher mpg, just like it does on my solara.

Are you guys manually figuring your averages or relying on the onboard computers calculations?
 
I am 960 miles in to the 2015 TRD and I am getting about 18 mpg with mixed. Pretty much on par with my 2004 SR5 before.

My commute includes Washington DC where 7 miles takes 45 minutes to get through on a good day. The other 23 miles home can go as quick as 20 minutes.:lookout:

I calculate mileage after a fill up so there is room for error but I have noticed that the mileage display from the car trip computer is usually lower.

The trip computer can be reset by holding the "DISP" button on the steering wheel to start a new average calculation. If you reset it while driving on the highway it will start a new "average" from the higher mileage. Likewise resetting while in traffic will start a new "average" from the lower, stop-and-go mileage.
 
My driving is 70% highway but still I am getting 17.1 to 17.7 avg per tank of gas in my 2014 TRD w/31k miles. I'm figuring these numbers the old fashioned way. The onboard computer always shows higher mpg, just like it does on my solara.

Are you guys manually figuring your averages or relying on the onboard computers calculations?

If you do a little more reading on this thread you will see folks are posting both ways.
Like I've said before, IMO the computer is more accurate than my manually calculated due to over/underfills.
 
My driving is 70% highway but still I am getting 17.1 to 17.7 avg per tank of gas in my 2014 TRD w/31k miles. I'm figuring these numbers the old fashioned way. The onboard computer always shows higher mpg, just like it does on my solara.

Are you guys manually figuring your averages or relying on the onboard computers calculations?
I use manual calculations. I always have the gas nozzle positioned the same way when fueling and always stop fueling as soon as the auto-off stops the fuel.

The computer can be fairly accurate. I find in unfavourable/windy conditons the stated consumption is more generous than actual calculated figures. Otherwise the computer is pretty accurate.
 
[MENTION=115996]enkrypt3d[/MENTION] : Phoenix is flat, the lights arent too close and I work an odd swing shift so I always beat traffic. And yes, I do drive in the 'eco zone' as much as I possibly can.

[MENTION=84331]diverscale[/MENTION] : If you are saying phoenix isn't a real city, on a per population basis, it is the 6th largest in America, on land area, it is the 5th (purely phoenix metro, not any suburb). It is a well planned one at that. Either way, I was merely adding to the discussion of what is possible; real city or not.

Edit: I also use the fill-up app on android to track my consumption and mileage, and it syncs pretty well with the onboard monitor. Like someone mentioned, it is flat, dry and has no real bad winds (except for the odd haboob now and then)
 
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