Vehicle Fuel Range

Discussion in 'Off-Topic' started by Isualum13, Jun 30, 2020.

  1. Isualum13

    Isualum13 Well-Known Member

    Apr 27, 2018
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    Curious how much people trust the fuel range their vehicle tells them. Personally, knowing my brother had run out of fuel a few times in his old car when the range said 15 miles, and my dad's old truck would go from a range of 50 miles to 0 in about 10 miles, I didnt trust it much, so I put a gallon of gas in my trunk and tested it. After I drove about 15 miles with the range saying 0 I pulled into a gas station and filled up. Pump stopped and was still about half of a gallon short of the tank capacity. While it's extremely rare for me to drive until it says zero miles, it's comforting to know that I don't need to worry too much about running out of fuel if the range gets low.
     
  2. Sousaclone

    Sousaclone Active Member

    Apr 29, 2006
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    Depends on where I am, what I'm doing (Road Trip vs in town, heavy vs light traffic, etc), and what vehicle I'm driving.

    Generally speaking once the light comes on I'm looking for a gas station in town. On road trips I'm looking for a fuel station with around 100-75 miles left on the range estimate.

    The rangemeter in my truck always tells me I can ~500 on a tank in my truck but whenever I fill it up with 50 miles left on the rangemeter (light / low fuel warning) I only ever seem to theoretically make it to a total of about 450.

    My jeep on the other hand if the low fuel light comes on I'm looking for a gas station ASAP. Depending on which way the wind is blowing I could be looking at 30 miles max range left.
     
  3. cycloner29

    cycloner29 Well-Known Member

    Dec 17, 2008
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    We ran our 2010 Grand Caravan to when the readout said 3. That's as close as I ever want to get to empty!!
     
  4. Gunnerclone

    Gunnerclone Well-Known Member

    Jul 16, 2010
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    Always carry a filled gas can if you drive a Jeep.
     
  5. besserheimerphat

    besserheimerphat Well-Known Member

    Apr 11, 2006
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    I'd trust it a lot more in a modern vehicle than something even 10 years old. They are better able to measure, record and analyze the fuel injection for estimating usage rates. I still use the idiot light more than the range info. Once the light turns on, I find a gas station ASAP unless in know I'll pass one in the next 10 miles or so.

    One thing they can't take into account yet though, as far as I know, is your upcoming terrain. So if you're about to go up a big grade that will take more fuel to maintain speed, it will underestimate how much fuel you use and overestimate your range (and reverse for downhill).
     
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  6. besserheimerphat

    besserheimerphat Well-Known Member

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    [​IMG]
     
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  7. Clonefan94

    Clonefan94 Well-Known Member

    Oct 18, 2006
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  8. VeloClone

    VeloClone Well-Known Member

    Jan 19, 2010
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    About a month ago I had to take the daughter somewhere and of course she made us late so I couldn't get gas before I took her to her destination. The car flipped over to 0 miles when I was about 1 mile from the gas station and I still made it. That is as close as I have ever gotten with a car with the X miles to empty readout.

    It's my own damned fault, I should have known that she could never be ready on time.
     
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  9. Gunnerclone

    Gunnerclone Well-Known Member

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    Drove a fully unwrapped ‘97 Wrangler from DSM to the Ozarks one summer. 8 mpg.
     
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  10. dmclone

    dmclone Well-Known Member

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    This is exactly opposite of my personality. I rarely go below 1/4 tank, have never ran out of gas, and probably only went in the red zone a handful of times. I'm the same way with about everything in my life. Can't remember ever being below 20% on my phone, pay bills early, arrive at events early, etc.
     
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  11. besserheimerphat

    besserheimerphat Well-Known Member

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    The phone bit is the most remarkable part of this whole thing.
     
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  12. Dandy

    Dandy Well-Known Member

    Oct 11, 2012
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    [​IMG]
     
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  13. STATE12

    STATE12 Active Member

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    Didn't even realize some would give a reading that low. All recent vehicles I've had all get to a point where they just say "low", almost as a disclaimer so you don't over trust the range remaining and end up empty on the side of the road.

    And I know it's the "I bet you're a lot of fun at a party" comment, but definitely a good practice to not let the light come on or the mileage remaining count to get too low every time before filling up.
     
  14. SCyclone

    SCyclone Well-Known Member

    Mar 11, 2014
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    The tank in my F-150 holds 36 gallons (in theory, never tested it). But I rarely let it get more than half empty, because it's too painful to fill it. Although it's not as bad as it was a couple years ago.

    I generally trust the mileage, but that's not to say I've ever confirmed it.
     
  15. Gunnerclone

    Gunnerclone Well-Known Member

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    Damn what’s the range on that ***** on the highway?
     
  16. CycloneDaddy

    CycloneDaddy Well-Known Member

    Sep 24, 2006
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    I have the same tank, getting ready to fill up for only the 2nd time since middle of March.
     
  17. SpokaneCY

    SpokaneCY Well-Known Member
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    But if you take the top off the lobster, it dies. Well that didn't really make my point...
     
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  18. wxman1

    wxman1 Well-Known Member

    Jul 2, 2008
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    As a pilot you have to know the total gallons the tank holds as well as usable. I have never been able to find much on usable amounts for car tanks.
     
  19. SCyclone

    SCyclone Well-Known Member

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    I just went to Wisconsin on vacation last week and averaged 21.9 MPG (mostly highway miles). So math would say around 788 miles.
     
  20. Gunnerclone

    Gunnerclone Well-Known Member

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    Im working on my garage right now to be able to fit a full size pickup. It would be awesome if my next vehicle could get me from CBUS to DSM without having to stop for gas (646 miles).
     

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