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post #1 of 32 (permalink) Old 03-14-2017, 06:55 PM Thread Starter
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Miles to empty pretty far off, anybody else?

I wanted to see if my new Tundra has an issue and if it could be addressed. Got a 2017 SR5 w/ TSS setup. I've noticed over the first few weeks that the miles to empty is pretty far off. Before anyone says it lol I don't romp around on the pedal and have been driving pretty consistently. An example of how far off it has been, filled up the tank and it estimated right about 400 miles to empty, I ended up getting about 340 miles before light came on. It seems for about every 3-4 miles I go the miles to empty drops 5.

I have a theory but not sure if it can be messed with in the ECU or if it's even worth it. The truck does have the 20 inch TSS style wheels on it so either the odometer is not counting correctly or the mileage left is not calibrated to that wheel/tire size.

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post #2 of 32 (permalink) Old 03-14-2017, 07:13 PM
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Originally Posted by bombboy85 View Post
I wanted to see if my new Tundra has an issue and if it could be addressed. Got a 2017 SR5 w/ TSS setup. I've noticed over the first few weeks that the miles to empty is pretty far off. Before anyone says it lol I don't romp around on the pedal and have been driving pretty consistently. An example of how far off it has been, filled up the tank and it estimated right about 400 miles to empty, I ended up getting about 340 miles before light came on. It seems for about every 3-4 miles I go the miles to empty drops 5.

I have a theory but not sure if it can be messed with in the ECU or if it's even worth it. The truck does have the 20 inch TSS style wheels on it so either the odometer is not counting correctly or the mileage left is not calibrated to that wheel/tire size.

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Keep your foot off the go button, I am getting 350 miles and I'm a little below half tank. Although it tells me I have 560 to empty. Do you have the 38 gal fuel tank?

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post #3 of 32 (permalink) Old 03-14-2017, 07:15 PM
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Are you using oxygenated gas??

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post #4 of 32 (permalink) Old 03-14-2017, 07:16 PM Thread Starter
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Keep your foot off the go button, I am getting 350 miles and I'm a little below half tank. Although it tells me I have 560 to empty. Do you have the 38 gal fuel tank?

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I don't have the 38 gallon tank. Like I said in the first post too... I don't romp the pedal and drive pretty consistently . I should have also mentioned that I traded in my 2014 SR5 and that one was pretty dead on 99% of the time so this one feels like something is up.
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post #5 of 32 (permalink) Old 03-14-2017, 07:18 PM
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I don't have the 38 gallon tank. Like I said in the first post too... I don't romp the pedal and drive pretty consistently . I should have also mentioned that I traded in my 2014 SR5 and that one was pretty dead on 99% of the time so this one feels like something is up.
You should romp periodically, keeps the smiles coming. Whats your average fuel econ?

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post #6 of 32 (permalink) Old 03-14-2017, 07:21 PM
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my low fuel gauge comes on and i have roughly 5 gallons left in the tank, i have the 38 gallon tank.
How is one getting 560 per fill up? is this why miles? Thats 14.7mpg, my new 17 limited CM with 1500 miles on it is averaging 13mpg right now. Hell 14.7 would be a dream.
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post #7 of 32 (permalink) Old 03-14-2017, 07:22 PM Thread Starter
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Are you using oxygenated gas??
same gas I was using in 2014 Tundra, no problems with it.
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post #8 of 32 (permalink) Old 03-14-2017, 07:24 PM Thread Starter
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You should romp periodically, keeps the smiles coming. Whats your average fuel econ?

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averaging 15-15.2 mpg so far (5.7 v8)
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post #9 of 32 (permalink) Old 03-14-2017, 07:25 PM
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Right now I have 1450 miles on. Averaging 16.1 mpg. Low was 14.9, high was 17.4.

So the extra 4 miles per gallon over the course of 30gals adds another 120 miles.

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post #10 of 32 (permalink) Old 03-14-2017, 07:26 PM
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Highway or City?
What am i doing wrong here? My city is averaging 13mpg
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post #11 of 32 (permalink) Old 03-14-2017, 07:29 PM
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With the newer oxygenated gas they are selling now it seems to kind of throw off the gauges. The oxygen displaces the gas in the tank and so it appears more full than it really is. As the oxygen vents off you end up with a lower fuel level and therfore lower overall range per tank of gas.

Just another way that the government has come up with to get you to pay more for less and make someone else rich.

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post #12 of 32 (permalink) Old 03-14-2017, 08:30 PM
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it's the TSS package, tons of threads on here of guys with TSS's having issues with the MTE and also MPG readout...

I personally would never buy a TSS, they have way more problems then regular Tundra's, bet there is a class action suit in the works

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post #13 of 32 (permalink) Old 03-14-2017, 08:32 PM
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Originally Posted by cwar11 View Post
Highway or City?
What am i doing wrong here? My city is averaging 13mpg
Good mix of both really. And its been cold, should pick up well in the summer.

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post #14 of 32 (permalink) Old 03-14-2017, 08:48 PM
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My around town is 15 wish and hiway i see 17 to 18....towing 10 to 11
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post #15 of 32 (permalink) Old 03-14-2017, 08:49 PM
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Mines off in a different way. Lately i've stopped trusting it as I ran out of gas with 25 miles till empty in mine.


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