Fuel guage math question......?

Modshack · 06-04-2009, 11:18 PM

Quote:

Originally Posted by cave vulture

Bingo ! That should do it........ except that I have been lead to believe the tank still has "x" amount of fuel in it after the last light goes out? Wouldn't that mean that each of the 16 lights equals less than the 1.18 gals?

I pay no attention to the lights, but when the warning comes up in the window it usually takes 16.XX gallons...

Diversion · 06-04-2009, 11:51 PM

I know lately that $20 gives me half my lights back

cave vulture · 06-05-2009, 12:11 AM

So, in summary.....assuming gas remains about $2.50, if more than half the lights are out, it should take $20 worth, no problem?

DIGItonium · 06-05-2009, 01:30 AM

Speaking of fueling up the car... you guys notice the fuel nozzle doesn't go in as deep? I actually put more more effort keeping the nozzle in and upright. It feels like it doesn't go in deep enough [knock on wood].

dad · 06-05-2009, 01:46 AM

Quote:

Originally Posted by cave vulture

Bingo ! That should do it........ except that I have been lead to believe the tank still has "x" amount of fuel in it after the last light goes out? Wouldn't that mean that each of the 16 lights equals less than the 1.18 gals?

Quote:

Originally Posted by cave vulture

So, in summary.....assuming gas remains about $2.50, if more than half the lights are out, it should take $20 worth, no problem?

After the last light goes out, you should have, "I'm guessing/assuming 2 to 3 gallons".
"But if you take it that low, you're going to suck up the crap and gunk from the bottom of your tank"! Not a good thing to do! I wouldn't go below a quarter of a tank!

Half lights, $20.00 for sure!

cave vulture · 06-05-2009, 02:37 AM

Sounds good. Mysterious lights solved.

k.alexander · 06-05-2009, 12:37 PM

I average about 18-20 miles, after the last light has gone out. At that point, the amount of gas that I can fill up is just about 19 gal, usually around 18.7-18.8gal. The 18-20 miles that I drove, I did this 2 or 3 times, was a mix of highway and city driving, but more on the city side. In that situation, I usually average around 18-20mpg, as I've been watching this stuff pretty carefully.

CONCLUSION: There is approx. 1, maybe close to 1.5gal left in the tank once all lights are out. Also, seeing how its a 19 gal tank, subtract the 1 or 1.5 gal above (from conclusion) that leaves say 17.5 gal that are spread out over 16 lights...or approx. 1.1 gal per light.

Hope this helps

bluzman · 06-05-2009, 03:12 PM

Quote:

Originally Posted by cave vulture

So, in summary.....assuming gas remains about $2.50, if more than half the lights are out, it should take $20 worth, no problem?

91 octane at $2.50/gallon?? Jesus wept...cheapest I've seen recently was $2.99 (ARCO).

butters167 · 06-05-2009, 04:00 PM

I don't watch the lights, I use the miles remaining display in the LCD and when it gets to about "50 miles left" I get gas.

Quote:

Originally Posted by bluzman

91 octane at $2.50/gallon?? Jesus wept...cheapest I've seen recently was $2.99 (ARCO).

91 was $1.99 for a while here in OK but has gone up to about $2.50 since last 2 weeks of May.

06-05-2009, 01:30 AM	#19 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Speaking of fueling up the car... you guys notice the fuel nozzle doesn't go in as deep? I actually put more more effort keeping the nozzle in and upright. It feels like it doesn't go in deep enough [knock on wood]. __________________

06-05-2009, 12:37 PM	#22 (permalink)
k.alexander Base Member Join Date: Feb 2009 Location: Philadelphia, PA Age: 45 Posts: 240 Drives: 09 Nissan 370Z PG M6 Rep Power: 714	I average about 18-20 miles, after the last light has gone out. At that point, the amount of gas that I can fill up is just about 19 gal, usually around 18.7-18.8gal. The 18-20 miles that I drove, I did this 2 or 3 times, was a mix of highway and city driving, but more on the city side. In that situation, I usually average around 18-20mpg, as I've been watching this stuff pretty carefully. CONCLUSION: There is approx. 1, maybe close to 1.5gal left in the tank once all lights are out. Also, seeing how its a 19 gal tank, subtract the 1 or 1.5 gal above (from conclusion) that leaves say 17.5 gal that are spread out over 16 lights...or approx. 1.1 gal per light. Hope this helps __________________ -Are you coming to bed? -I can't. This is important. -What? -Someone is WRONG on the internet.

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06-04-2009, 11:51 PM	#17 (permalink)
Diversion Enthusiast Member Join Date: Apr 2009 Location: Jacksonville, Florida Posts: 393 Drives: 09 370Z Silver/Persi Rep Power: 284	I know lately that $20 gives me half my lights back

06-05-2009, 12:11 AM	#18 (permalink)
cave vulture Enthusiast Member Join Date: May 2009 Location: pennsylvania Posts: 427 Drives: 370z tour,sport,auto Rep Power: 16	So, in summary.....assuming gas remains about $2.50, if more than half the lights are out, it should take $20 worth, no problem?

06-05-2009, 02:37 AM	#21 (permalink)
cave vulture Enthusiast Member Join Date: May 2009 Location: pennsylvania Posts: 427 Drives: 370z tour,sport,auto Rep Power: 16	Sounds good. Mysterious lights solved.