Last few fuel dots?!?

JungleZ · 02-18-2013, 06:01 PM

I remember reading this before but when I get to 3 dots remaining they seem to disappear And the range goes from like 40 to 20 to--- within like 5 miles.. Feels like I'm getting gypped

homeryansta · 02-18-2013, 06:04 PM

I also feel like the dots are not linear in relation to the gas tank. It takes like 100 miles to get rid of the first dot then the rest are just there to look pretty because they drop pretty quickly.

JARblue · 02-18-2013, 06:32 PM

The dots are determined by a floating sensor in the gas tank. If you look at the shape of the gas tank, it is quite obvious why the dots disappear in the manner they do

I regularly take mine down to a single dot with -- Mileage Remaining reading on the display. I pay attention to my driving habits and my mileage per tank to know exactly how much gas I have left.

Read T · 02-18-2013, 07:42 PM

On other nissan's I have I refer to the fuel gauge as an empty gauge. Reads full for like 150 miles then drops down quickly. Same with the 370z

OldGuy · 02-18-2013, 07:48 PM

Just play it safe and fill up when you fall below half. One less thing to worry about with this car.

Coon-azz · 05-02-2013, 06:47 AM

Quote:

Originally Posted by OldGuy

Just play it safe and fill up when you fall below half. One less thing to worry about with this car.

Agreed...issue resolved.

JARblue · 05-02-2013, 07:24 AM

Quote:

Originally Posted by Coon-azz

Agreed...issue resolved.

Other than fuel starvation potential, I'm still confused as to what is the actual issue. If I'm driving where I think FS might be a problem (i.e. on a track), then I will adjust my fill up habits accordingly. So far, all I've heard, is that the life of the fuel pump might be shortened by waiting so long to fill up with no evidence why or how that might happen. I will certainly post if I ever have a problem, but I haven't had a problem yet in 2+ years of DD.

No response needed unless you can explain why the fuel pump would fail because I don't put gas in the car soon enough with a 'running out of gas' scenario excluded from the equation. I'm happy for everyone to do whatever they want when they fill up their cars, but it just seems like there are a lot of people saying that the Z should be filled up at 5 dots or half a tank or something without a valid reason why.

SouthArk370Z · 05-02-2013, 08:51 AM

Quote:

Originally Posted by JARblue

... No response needed unless you can explain why the fuel pump would fail because I don't put gas in the car soon enough with a 'running out of gas' scenario excluded from the equation. ...

The two theories that I have seen/heard are: lack of general cooling and lack of seal lubrication. Both caused by loss of flow for extended periods while the pump motor is running.

Most common reasons for loss of flow seems to be clogged inlet filter and corrosion/erosion caused by water and/or alcohol. I didn't dig very deep, but it appears that lack of fuel only becomes a problem if it lasts for more than a few seconds. Google "fuel pump failure" for more info.

CDepp · 02-18-2013, 08:30 PM

Number 8

tWeEzY · 02-18-2013, 08:50 PM

On my most recent cross country trip, i let it drop down to the last dot twice and each time i filled up it was over 18 gallons if this helps. I averaged 75mph the whole trip.

TerribleONE · 02-18-2013, 09:27 PM

I think we only have a 19 gallon tank..

JARblue · 02-18-2013, 09:45 PM

Quote:

Originally Posted by TerribleONE

I think we only have a 19 gallon tank..

I believe its 19.1 US Gal I have a pic somewhere on the forum showing an 18.1 Gal fill up but my record is 18.6

TerribleONE · 02-18-2013, 09:47 PM

Quote:

Originally Posted by JARblue

I believe its 19.1 US Gal I have a pic somewhere on the forum showing an 18.1 Gal fill up but my record is 18.6

JARblue · 02-18-2013, 09:52 PM

Quote:

Originally Posted by TerribleONE

I wanted to get 400 miles on the tank. I braved it to 405 miles on that single tank (lots of highway miles) before stopping at the HEB near the house on my way home

My commute is about 7 miles one way, so I was just shy on my drive in that morning.

DEpointfive0 · 02-18-2013, 10:12 PM

... SOB... Car read 3 dots, 43 miles left, took a dump...
No right hand turns either, lol
Lets see if it's the gas gauge's shíttiness or my fuel pump

02-18-2013, 06:01 PM	#1 (permalink)
JungleZ Banned Join Date: Aug 2012 Location: orange county,ca Posts: 652 Drives: leased base z... Rep Power: 0	Last few fuel dots?!? I remember reading this before but when I get to 3 dots remaining they seem to disappear And the range goes from like 40 to 20 to--- within like 5 miles.. Feels like I'm getting gypped

02-18-2013, 06:04 PM	#2 (permalink)
homeryansta Enthusiast Member Join Date: Apr 2011 Location: Brooklyn Park, MN Posts: 424 Drives: 04 se-r spec v, 370z Rep Power: 14	I also feel like the dots are not linear in relation to the gas tank. It takes like 100 miles to get rid of the first dot then the rest are just there to look pretty because they drop pretty quickly. bigdog1250, UNKNOWN_370, Bking and 5 others like this. __________________

02-18-2013, 06:32 PM	#3 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 44 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684441	The dots are determined by a floating sensor in the gas tank. If you look at the shape of the gas tank, it is quite obvious why the dots disappear in the manner they do I regularly take mine down to a single dot with -- Mileage Remaining reading on the display. I pay attention to my driving habits and my mileage per tank to know exactly how much gas I have left. Dart, Vaughanabe13, DEpointfive0 and 1 others like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

02-18-2013, 07:42 PM	#4 (permalink)
Read T A True Z Fanatic Join Date: May 2012 Location: Raleigh, NC Posts: 1,046 Drives: 11 Nissan 370z BC 6M Rep Power: 18	On other nissan's I have I refer to the fuel gauge as an empty gauge. Reads full for like 150 miles then drops down quickly. Same with the 370z Vaughanabe13 likes this. __________________ 2011 Nissan 370z Black Cherry Sport Pkg - Daily Driver, , 1960 Morgan +4 fun car, 1986 BMW 325ES, 1998 M3 and 1996 Spec Miata - Race Cars SUPPORT TEAM WINSOME RACING - WRL, CHUMP, LEMONS

02-18-2013, 07:48 PM	#5 (permalink)
OldGuy Base Member Join Date: Dec 2009 Location: Greensburg PA Posts: 899 Drives: '09370Z Red Base A7 Rep Power: 17	Just play it safe and fill up when you fall below half. One less thing to worry about with this car. PaulZ370, gurneyeagle, MarkGideon and 1 others like this.

02-18-2013, 08:30 PM	#9 (permalink)
CDepp Track Member Join Date: Nov 2012 Location: Charlotte, NC Posts: 837 Drives: sideways Rep Power: 14	Number 8 Trips and JARblue like this. __________________ -CDepp- 2011 MB Base+S M6 \| Invidia Exhaust \| TommyKairaHebiBeibi \| H&R Spacers 15/20 \| GTR Start \| 305hp/240tq

02-18-2013, 08:50 PM	#10 (permalink)
tWeEzY Base Member Join Date: Jul 2012 Location: d.c Posts: 149 Drives: 2011 370z Rep Power: 13	On my most recent cross country trip, i let it drop down to the last dot twice and each time i filled up it was over 18 gallons if this helps. I averaged 75mph the whole trip. __________________ 2011 370z <sold> 08 350z enthusiast <sold>

02-18-2013, 09:27 PM	#11 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	I think we only have a 19 gallon tank.. __________________ 638WHP 541WTQ @ 13.5PSI Build thread

02-18-2013, 10:12 PM	#15 (permalink)
DEpointfive0 A True Z Fanatic Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17152	... SOB... Car read 3 dots, 43 miles left, took a dump... No right hand turns either, lol Lets see if it's the gas gauge's shíttiness or my fuel pump

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