full tank of gas

ojefferyo · 02-11-2008, 07:42 PM

ok here goes...i filled up the other day and and it went down to 3/4 of a tank i approached 100 miles on the trip so technically if you do the math that would equall 400 miles on a take right? but it doesn't...can someone explain to me why this is? i'm just curious...

radiocontrolhead · 02-11-2008, 07:46 PM

It doesn't really work out that way. What you think is 3/4 tank is probably less. Maybe 5/8th or so. It never worked out that way for me at least.

**Izzy** · 02-11-2008, 07:47 PM

Yeah, the gas gauge isn't accurate to the percentage. It seems to drain faster for me around halfway.

siracing17 · 02-11-2008, 07:47 PM

at 1/2 a tank it always goes quicker on mine

***Janizary*** · 02-11-2008, 07:47 PM

Our gas gauges are not exactly linear in the civic. They are pretty accurate between 3/4 and 1/4 but the top quarter and bottom quarter can be 'hokey'.

ojefferyo · 02-11-2008, 07:56 PM

that really sucks...wish it was more accurate though

anavrin351 · 02-11-2008, 08:14 PM

My last 1/4 tank always goes realy fast. Thats the problem with electronic gauges. Mechanical ones are normaly a lot more accurate

FG-JOE · 02-11-2008, 08:37 PM

i got 240 miles on a tank. mine to says 100 on 3/4 of a tank. i dont worry. but the next morning i have 1/2 a tank.

Litlelev · 02-11-2008, 08:42 PM

it may not be accurate but its pretty consistent. I can always tell good mileage from poor anywhere under 3/4 tank. You'll get use to it.

Gimenez · 02-11-2008, 08:44 PM

Wait until its over, you will get surprises. The other day I filled up, drove about 40 miles and my tank still showed full, when I turn my car on the next day, it already erased two bars... crazy

radiocontrolhead · 02-11-2008, 08:47 PM

I think our gas tanks are shaped like a funnel and they mark their halfway mark by using the length rather than the volume. That's why I think after half way down the bars dissapear exponentialy!

ojefferyo · 02-11-2008, 08:50 PM

yeah thats pretty sneaky huh...i manage to get anywhere from 250-300 miles on a take depends how i drive.

habitat · 02-11-2008, 09:58 PM

Quote:

Originally Posted by ojefferyo

that really sucks...wish it was more accurate though

You also have to take into consideration the position of the car. Gasoline is a liquid, as you park in an incline the gauge can also misread more or less full. Being accurate to the mile is a bit far fetched to ask for, what about the quality , density, evaporation, winter/summer mixture of the gas? etc. etc. etc. Way too many variables to even try to begin to make such an accurate gauge.

Manutd · 02-11-2008, 10:00 PM

you probably vtec the crap outta your car :P lol heheh

ojefferyo · 02-12-2008, 12:40 AM

Quote:

Originally Posted by Manutd

you probably vtec the crap outta your car :P lol heheh

only on days that end with Y

xmadxpenguinx · 02-12-2008, 12:51 AM

Quote:

Originally Posted by siracing17

at 1/2 a tank it always goes quicker on mine

Same here...

borabora1989 · 02-12-2008, 01:41 AM

on my si i get an average of about 250miles per tank leaving about 2 or 1 bar left b4 fill up

radiocontrolhead · 02-12-2008, 12:04 PM

Quote:

Originally Posted by borabora1989

on my si i get an average of about 250miles per tank leaving about 2 or 1 bar left b4 fill up

That's about average. I hit 300 miles once because I was driving mostly highway.

**Izzy** · 02-12-2008, 12:12 PM

I usually hit 270-ish, myself. Just recently hit a 305 mile tank, and I was real happy about that. Averaged 28.5 mpg.

06Honda06SI · 02-12-2008, 12:24 PM

what do u guys shift at to get the best possible gas mileage out of your cars. (getting a SI between may-july)..... good information btw

02-11-2008, 07:42 PM	#1 (permalink)
ojefferyo Senior Member Join Date: Oct 2007 Location: Gas Pedal Abuser Posts: 320 Jeff iTrader: 0 / 0%	full tank of gas ok here goes...i filled up the other day and and it went down to 3/4 of a tank i approached 100 miles on the trip so technically if you do the math that would equall 400 miles on a take right? but it doesn't...can someone explain to me why this is? i'm just curious...

02-11-2008, 07:47 PM	#3 (permalink)
Izzy Supreme Pizza! Join Date: Mar 2006 Location: Azusa, CA Age: 25 Posts: 11,938 iTrader: 5 / 100%	Yeah, the gas gauge isn't accurate to the percentage. It seems to drain faster for me around halfway. __________________

02-11-2008, 07:47 PM	#5 (permalink)
*Janizary* Minister of Discord Join Date: Nov 2005 Location: Sith Ferret dojo Posts: 6,529 Gas thread Nazi iTrader: 0 / 0%	Our gas gauges are not exactly linear in the civic. They are pretty accurate between 3/4 and 1/4 but the top quarter and bottom quarter can be 'hokey'. __________________ • Official BMW 1-Series Thread • DX/LX/EX Gas Mileage Thread • Civic Si Gas Mileage Thread • Civic Hybrid Gas Mileage Thread

02-12-2008, 12:12 PM	#19 (permalink)
Izzy Supreme Pizza! Join Date: Mar 2006 Location: Azusa, CA Age: 25 Posts: 11,938 iTrader: 5 / 100%	I usually hit 270-ish, myself. Just recently hit a 305 mile tank, and I was real happy about that. Averaged 28.5 mpg. __________________

LinkBacks (?) LinkBack to this Thread: http://www.8thcivic.com/forums/driving-experience/78495-full-tank-gas.html
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8th Generation Honda Civic Forum	This thread	Refback	02-11-2008 07:49 PM

02-11-2008, 07:46 PM	#2 (permalink)
radiocontrolhead Senior Member Join Date: Apr 2006 Location: Hollywood, ca Age: 21 Posts: 2,325 Danny iTrader: 0 / 0%	It doesn't really work out that way. What you think is 3/4 tank is probably less. Maybe 5/8th or so. It never worked out that way for me at least.

02-11-2008, 07:47 PM	#4 (permalink)
siracing17 Senior Member Join Date: Nov 2007 Location: Rockland, NY Age: 17 Posts: 655 Joseph iTrader: 0 / 0%	at 1/2 a tank it always goes quicker on mine

02-11-2008, 07:56 PM	#6 (permalink)
ojefferyo Senior Member Join Date: Oct 2007 Location: Gas Pedal Abuser Posts: 320 Jeff iTrader: 0 / 0%	that really sucks...wish it was more accurate though

02-11-2008, 08:14 PM	#7 (permalink)
anavrin351 Senior Member Join Date: May 2007 Location: Seattle Age: 23 Posts: 1,999 Tyler iTrader: 3 / 100%	My last 1/4 tank always goes realy fast. Thats the problem with electronic gauges. Mechanical ones are normaly a lot more accurate

02-11-2008, 08:37 PM	#8 (permalink)
FG-JOE Senior Member Join Date: Oct 2007 Location: Bakersfield Age: 18 Posts: 475 Joseph iTrader: 5 / 100%	i got 240 miles on a tank. mine to says 100 on 3/4 of a tank. i dont worry. but the next morning i have 1/2 a tank.

02-11-2008, 08:42 PM	#9 (permalink)
Litlelev Senior Member Join Date: Jun 2007 Location: NJ Posts: 1,017 iTrader: 3 / 100%	it may not be accurate but its pretty consistent. I can always tell good mileage from poor anywhere under 3/4 tank. You'll get use to it.

02-11-2008, 08:44 PM	#10 (permalink)
Gimenez Senior Member Join Date: Jan 2008 Location: Orlando FL Posts: 816 Luis Gimenez iTrader: 0 / 0%	Wait until its over, you will get surprises. The other day I filled up, drove about 40 miles and my tank still showed full, when I turn my car on the next day, it already erased two bars... crazy

02-11-2008, 08:47 PM	#11 (permalink)
radiocontrolhead Senior Member Join Date: Apr 2006 Location: Hollywood, ca Age: 21 Posts: 2,325 Danny iTrader: 0 / 0%	I think our gas tanks are shaped like a funnel and they mark their halfway mark by using the length rather than the volume. That's why I think after half way down the bars dissapear exponentialy!

02-11-2008, 08:50 PM	#12 (permalink)
ojefferyo Senior Member Join Date: Oct 2007 Location: Gas Pedal Abuser Posts: 320 Jeff iTrader: 0 / 0%	yeah thats pretty sneaky huh...i manage to get anywhere from 250-300 miles on a take depends how i drive.

02-11-2008, 10:00 PM	#14 (permalink)
Manutd Senior Member Join Date: Oct 2007 Location: Markham, Ontario Age: 19 Posts: 454 I Heart My CSX :D iTrader: 0 / 0%	you probably vtec the crap outta your car :P lol heheh

02-12-2008, 01:41 AM	#17 (permalink)
borabora1989 Senior Member Join Date: Oct 2007 Location: mass Posts: 384 iTrader: 0 / 0%	on my si i get an average of about 250miles per tank leaving about 2 or 1 bar left b4 fill up

02-12-2008, 12:24 PM	#20 (permalink)
06Honda06SI Senior Member Join Date: Jul 2007 Location: Yorktown Hts, NY Age: 19 Posts: 213 iTrader: 0 / 0%	what do u guys shift at to get the best possible gas mileage out of your cars. (getting a SI between may-july)..... good information btw

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