DTE on 3Ldiesel

calltrex · December 31, 2020

Anyone have issue with the distance to emyty reading ? Mine only reads 550k when if filed it up.

Only first tank but it should still read 800km

Never had a problem with my last 2 trucks

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CamGTP · December 31, 2020

Did you use spell check?

I don't understand what you typed.

calltrex · January 1, 2021

I'm at 800km now and it says 160km to empty.

Should have read 800km DTE to begin with

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CamGTP · January 1, 2021

If it's anything like my truck it's going to use what the last 50 mile avg or the last 400 mile (sorry I don't know KM off hand) was for calculating distance to empty.

Like for me I only drive city for going to work and to the stores, most days are under 10 miles total. So you can figure that my fuel mileage is terrible and the winter mileage is worse. But say I want to go north to the cabin and I get around 22mpg on the freeway, when I fill up it's not going to say I can go 500+ miles until empty, it's going to say I'm going run out of gas at 300 miles because of my previous fuel mileage. Pretty much the whole time my distance to empty will stay around 300-320 miles until I hit around 200 miles in, then it starts to walk it way down.

Not saying that is your issue but that's how it works on my truck.

Jay P · January 1, 2021

1.6km to a mile

redwngr · January 1, 2021

5 hours ago, calltrex said:

I'm at 800km now and it says 160km to empty.

Should have read 800km DTE to begin with

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Not sure I understand what's wrong with that, or what you're thinking it should be.

What's the fuel gauge saying?

What do you think the range should be saying?

It's trying to estimate how much further you can go with the remaining fuel -- so is assuming that fuel consumption will remain similar.

If you've gone 800 km and it says 160 km remaining, then if you fill it it the the range screen should change to predict 950 - 1000 km remaining.

calltrex · January 1, 2021

I fill up my last 2 trucks it will say around 600km to empty

Fill this thing and it says 550kn to empty. Can get a hell of a lot farther then that

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DemonWorks · January 1, 2021

it's based off your average mpg. Not an indicator of something wrong with the truck, perhaps this one is juts used or driven differently (more idle time?) than the other 2 trucks you filled up.

we are also in winter fuel at this point and worse mileage is to be expected.

calltrex · January 1, 2021

So far on first tank I'm at 800km. Says I have over 100km left

This DTE is screwed in the head.

See what it is when I fill it up. I'm going till after the fuel light comes on at least. Just want to see how far it can go on a tank.

By the way It's hwy 70% of the time

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redwngr · January 2, 2021

It is base on the actual averages the truck has been seeing/recording (not what GM or EPA thinks it should get), so if at time of delivery/first fill the mpg's recorded so far were crappy then it wouldn't give a very high estimate.

I'd expect that when you fill it the estimated range will reflect the actual mileage you've been getting....900km/tank, or somewhere in that range.

calltrex · January 2, 2021

Finally ran out of fuel today after 2 weeks. 901km

Filled it after. Now says 715km to empty

Maybe it will go up again after next fill

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CamGTP · January 2, 2021

Do those trucks let you see the 25/50/400 miles averages or 40/80/640km?? (the KM values might wrong)

See what the last two say and that's a good idea of what it's basing it on.

Jglew82 · January 2, 2021

Do those trucks let you see the 25/50/400 miles averages or 40/80/640km?? (the KM values might wrong)

See what the last two say and that's a good idea of what it's basing it on.

They do, just like the K2 trucks. And I agree. It’s pretty close, too.

redwngr · January 3, 2021

20 hours ago, CamGTP said:

Do those trucks let you see the 25/50/400 miles averages or 40/80/640km?? (the KM values might wrong)

See what the last two say and that's a good idea of what it's basing it on.

My 'metric' T1 truck uses set to metric shows 50km/100km/650km

When set to 'inch' units, it shows 31mi/62mi/404mi

iirc, the other GMC 'metric' vehicle in the driveway doesn't use these 'hard conversion' numbers.