Gas Indicator
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Heel & Toe
Joined: Aug 2015
Posts: 15
Likes: 1
From: Yelm WA
Gas Indicator
I just got a 2020 Z51. Filled it up but the DIC says 190 mi left of range. Avg gas mileage is running 24 over two days driving. Is there something I need to do or do I have a fault in the DIC
Race Director
Joined: Jan 2014
Posts: 10,709
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From: Fulshear, TX
It's the algorithm estimating your current range based on past and current driving conditions. Just drive the car and it will learn & adjust. My guess is the car spent a lot of time idling or being moved around a dealership and not actually being driven out on the road. Same thing with brand new cars, takes a full tank or two (depending on conditions) before it starts actually getting accurate.
Race Director
Joined: Aug 2016
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From: Garden Valley CA
Drive it for a while. The range estimate is based on previous driving history. Depending on how you drive, the range may go up.
Race Director
Joined: Jan 2014
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From: Fulshear, TX
Melting Slicks
Joined: Sep 2020
Posts: 2,833
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From: Kelso, Wa
It changes with each drive and tank of gas. I love it when It gives me a range after in town driving then getting out on the freeway. I've sometimes driven 30 miles or more down the freeway and had it report a range greater than I had when I started the drive.
To double check things. ..... At each fill up, reset the trip computer, either 1 or 2. That way you can see the reported average for that particular tank. While driving scroll to see the mileage reported for the drive you're presently doing. .. and watch the gas gauge to estimate the fuel remaining. That gauge seems pretty accurate .. i.e. at 1/2 tank fill up, it take about 9 gallons and at 3/4 tank gone a bit over 13 gallons. .. Now you can estimate gallons left vs.economy for the drive you're doing.
To double check things. ..... At each fill up, reset the trip computer, either 1 or 2. That way you can see the reported average for that particular tank. While driving scroll to see the mileage reported for the drive you're presently doing. .. and watch the gas gauge to estimate the fuel remaining. That gauge seems pretty accurate .. i.e. at 1/2 tank fill up, it take about 9 gallons and at 3/4 tank gone a bit over 13 gallons. .. Now you can estimate gallons left vs.economy for the drive you're doing.
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It's the algorithm estimating your current range based on past and current driving conditions. Just drive the car and it will learn & adjust. My guess is the car spent a lot of time idling or being moved around a dealership and not actually being driven out on the road. Same thing with brand new cars, takes a full tank or two (depending on conditions) before it starts actually getting accurate.
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Safety Car
Joined: Nov 2000
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From: Northern VA, USA
GM's Distance to Empty calculation is based (heavily or entirely) on very recent driving. I don't know exactly what distance (or time) it uses, but it seems like the it is the last 25-50 miles or so. If you drove a bunch in-town before a fill-up, you'll see a low distance to empty number. If you immediately hop on the highway, you'll probably see that number increase pretty quickly.
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Joined: Aug 2016
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From: Garden Valley CA
