When does the gas light go on? - Hyundai Forums : Hyundai Forum
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#1 Old 11-16-2012, 07:39 AM
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Question When does the gas light go on?

Hi - was just wondering if any one knows when does the gas light goes on. I thought I read somewhere it goes on when the average to empty hits 90 km. But I can't find it anymore... Yesterday it didn't go on till 72 km to empty.

Dragona
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#2 Old 11-16-2012, 08:06 AM
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As the fuel pumps are in the tank and are cooled by the fuel, it's a good idea to add fuel before the light goes on as a low fuel situation may cause the pump to overheat and fail.

That's why the light comes on with 2-3 gallons of fuel remaining, or at least it does that in our two late model Nissans.

Randy in Nashville
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#3 Old 11-16-2012, 11:22 AM
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Mine goes on with 50 miles left, or 80 Km give or take. Canadian versions may be programed differently though
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#4 Old 11-16-2012, 11:42 AM
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Mine consistently goes on at the same time that the next to last bar goes out, leaving one bar left. I usually fill up very soon after that for the above stated reason as to fuel pump heating.
Interestingly, some friends and I had a conversation as to that heating issue a few days ago. One gent is a service manager at a local Ford dealer. He said that the key is to not CONSISTANTLY run the tank down to less than a couple of gallons. Once in a while is not an issue, as the pump does not get that hot to begin with. He said you can hold one in your hand while it is running and pumping a fluid and it barely feels warm.

Walt
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#5 Old 11-16-2012, 12:37 PM
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One of those subjects with a lot of speculation and almost no hard data, but mine is that you're not going to cause your fuel pump any harm in running the car as low as you like, but it doesn't do it any good to run it dry.

- Mark
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#6 Old 11-16-2012, 01:43 PM
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Quote:
Originally Posted by markjenn View Post
One of those subjects with a lot of speculation and almost no hard data, but mine is that you're not going to cause your fuel pump any harm in running the car as low as you like, but it doesn't do it any good to run it dry.

- Mark
I remember my first encounter with electric fuel pumps. A close friend and I were attending an advanced cinema photography course in Pensacola, FL back in 1964. We were running around town gathering movie footage for our project and were using his car, an early 60's MGB-GT. What fun!!! :-) Late in the day we were heading back to the base and he turned to me and said, "We're running out of gas." At that moment the engine sputtered once and died! Oh crap!, I thought. He pulled off the road and went to his trunk and produced a gallon can that was half full of gas. He poured it in and I got out to help him push. He looked at me strangely and said get in. I did and he turned the key on, and we could hear this whirr sound from the back and then a rapid click, click, click. After about 10 clicks it markedly slowed til no more clicks. He turned the key to start and away we went! He could not believe that I didn't know about electric fuel pumps!

Walt
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#7 Old 11-16-2012, 01:43 PM
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Garage
Why risk it? When you have 3 bars left buy gas. You never know what may come up.

2011 Titanium Gray Elantra GLS
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#8 Old 11-16-2012, 03:26 PM
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Mine comes on between 80km and 60km but I usually fill the tank up when it says I have 100km til empty.......

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#9 Old 11-16-2012, 07:50 PM
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Thanks everyone for your feedback! Much appreciated... It's not a habit of mine to run it until the gas light comes on. I usually fill up when I get to 1/4 tank. But having a new car if you're like me you like to check out all the little bells and whistles lol

Dragona
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#10 Old 11-16-2012, 09:23 PM
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Yep, without actually running out of gas, I want to test how much leeway I have after the light comes on, in case some day it matters. My old car showed miles to empty starting with 60, but it dropped like a rock after that.
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