Fuel tank indicator questions
 

After about an hour of searching, the closest thread I could find to answer my question was one where some r-tard kept putting gas in his car until he could see it in the fill spout.

I was doing some holiday travel and filled up before I left. When I was almost at my destination, my miles left indicator said 60 miles while I only had 40 miles left to drive. About 15 miles before I reached my exit (where I planned to fill up) some jerkoff in a vtech started messing with me. I quickly got it up to ~120 before we hit traffic again. When I did this, it was still showing 35 miles left. When I was about 5 miles short of my exit, my indicator had 23 miles left showing. It started to fall very quickly after that, finally ending on 1 mile remaining when I reached my exit.

When I filled up my car (right next to the interstate), I was able to put 13.25 gal in before it stopped. I went a total of ~321 miles @24.2 MPG which is about what I would expect. Why would the fuel light come on when the miles left indicator still says 40 if when the indicator reaches 0 there is still 2.65 gal/60ish miles left? I realize that these sensors aren't perfect, and they are made to be idiot proof so brownies don't run out of gas. However, this means that you have ~100 miles left when the light first comes on? Also, what would have made my indicator drop so fast at the end when I was cruising along @ 80 mph on a relatively flat interstate? On the return trip, gas mileage/indicator seemed to be doing just fine. The return trip was much shorter and I still have a half tank left.

the light will always come on when your range =<40, and you'll always have about 2 gallons in the tank when your range hits zero.

it's a safety margin to combat overly litigious scum.

I'm too lazy to look it up, but there is already a thread on here discussing it...
Basically all auto manufacturers build in the retard factor... Retards like to push it and see how long they can drive with 0 miles on the display...

Because if it was wrong even slightly, and someone ran out of gas when it said there was 3 miles left, something terrible would happen and there would be a lawsuit. Make things as idiot proof as possible because people don't have common sense, and because others are stupid, you could suffer for their stupidity.

I feel like you pulled this thread out of an algebra book. Maybe solving for X will give you the answer. Thanks for making me do math, jerk!:censored:

I find the range thing to be horribly inaccurate. It says I'll get 400 something miles when I fill up. I wish!

http://m.autos.aol.com/article/gas-gauge/

This gives a reasonable explanation on why the fuel gauge works like it does

Yea you can't rely on how many miles it says until empty. Most of the time when I reach a quarter tank left I fill up. This saves me from being on the side of the road with your hazzards on.

Can I have those 3 minutes I spent reading this shit back. Because genpu owner.........wait I am a genpu owner...........fuck!