Gas Range

I get 350 on a tank in a double cab short bed 4x4 at. Averaging 18 mpg

 

My 17 will usually say 400-410 DTE.
As I drive the computer will show all kinds of awesome mpg numbers but when I do the math i'm averaging 20 overall.

 

Is there a way to teach the computer how to learn reality?

 

Having similar experience. New it said 338 to Empty. Now with 3000 miles on it it’s down to 281 to empty on full tank.

Filled it today with 3083 miles on the odometer and went for a drive. Ended with 3200 miles which is very accurate 117 miles traveled so odometer seems fine (I put my route in a map online to check miles traveled). But the miles to empty display went from 281 to 209, a difference of only 72 miles.

That’s 45 miles off just using a quarter tank of gas.

So it seems like there may be 2 issues.
1. The 281 seems kinda low to start especially since it used to show over 330
2. Doesn’t seem to correspond even remotely close to actual miles traveled.

I was thinking it had something to do with the tires LT285/65R/18 Nitto Trail Grappler 33’s but if it was caused by the tires wouldn’t the odometer also be inaccurate?

 

It would be inaccurate unless you recalibrated for the larger tires.

 

OK, after a 5,000 mile trip and with careful documentation of miles and gas purchases, I have determined the Distance to Empty read-out is pretty accurate if it were read as kilometers.

 

When I first got my taco it read 425. Then 385, now 368. I usually refuel around quarter tank ~which gets me around 220 miles. Never even close to 385.

 

My above post about kilometers was done in jest but its really close, do the math.......

 

I find mine to be accurate.

 

I went from a 17 TRD sport distance to empty is at 385 miles until empty and the 19 TRD pro I have now says 368-370 miles. Has anyone else noticed that who had/has 2 3rd gen Tacomas to compare?

 

417 Miles to empty was the most I got. 265/70/17 - Original rims. No kits

 

2017 TRD Sport DCLB

 

Pretty much stays at 385. When I was doing nothing but highway driving here it would always be above 400. I miss those days

 

A computer is making predictions about the future based on past and present conditions. When you start on a fresh tank, you're going to get a less accurate prediction. As you approach an empty tank, those predictions will get closer and closer to reality.

It can't know that you're going to switch to winter blend gas, or that you're going to be in a pissy mood tomorrow and stomp on the gas and tailgate everyone.

At some point, your tank will be completely empty, and the calculation will say zero more miles, and it will be 100% accurate.

 

Pretty clear and precise explanation in my eyes.

 

I have a gas range.....
oh wait

Wrong thread.
sorry.

 

Hilariously, I would not have clicked on this thread if not for that subject line. I try to avoid the MPG discussions!

 

I was about 5 posts deep before I figured out it wasn't about cooking.

 

I was/am dealing with the same thing. I just bought this Tacoma and it was kind of worrying that it wasn’t getting anywhere near where the DTE was estimating. My tundra(s) were accurate from day one.

Thanks for the info