Gas needle not pointing to full - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

SF-FRS · 10-04-2012, 08:27 PM

I just went to the gas station and topped off the gas tank.....But when I went to start the car....it wasn't showing full....Hmmm

einzlr · 10-04-2012, 08:29 PM

Gas gauges do that; they're not precision instruments. Don't even worry about it

roddy · 10-04-2012, 10:46 PM

I think I know what you are talking about. This has happened to me a few times as well. Every once in a while, when I fill the car, the needle stops about a needle's width short of full. The first time it happened, I made it a few blocks, and thought WTF? I pulled into the next gas station and managed to pump about 30 cents worth into it.

fistpoint · 10-04-2012, 11:07 PM

Several people have mentioned this for this car. I think I prefer the Honda method which is often erroneous too. In their case it reads full for the first 3 gallons of usage then drops off significantly. I remember in my older Si's that I would make it a game to get as many miles as possible before the needle moved. Just over 100 is my record which is almost 1/3rd of the tank.

MmmHamSandwich · 10-04-2012, 11:20 PM

Quote:

Originally Posted by fistpoint

Several people have mentioned this for this car. I think I prefer the Honda method which is often erroneous too. In their case it reads full for the first 3 gallons of usage then drops off significantly. I remember in my older Si's that I would make it a game to get as many miles as possible before the needle moved. Just over 100 is my record which is almost 1/3rd of the tank.

Hahaha. Fellow Si owner here. Definitely one of the quirks of the car. New drivers think "wow, this car gets great mileage, I haven't used any gas!".

The next thing you know you're at half a tank.

Spartan65 · 10-04-2012, 11:21 PM

Quote:

Originally Posted by SF-FRS

I just went to the gas station and topped off the gas tank.....But when I went to start the car....it wasn't showing full....Hmmm

This is an issue I have quite frequently, I'll put a full tank and it only goes up to 3/4.

Lithandril · 10-05-2012, 03:23 AM

Quote:

Originally Posted by MmmHamSandwich

Hahaha. Fellow Si owner here. Definitely one of the quirks of the car. New drivers think "wow, this car gets great mileage, I haven't used any gas!".

The next thing you know you're at half a tank.

I was thinking that too while i was driving around tonight. Drove over 100km and needle barely moved until i turned the car off lol

FR-S Hot Lava · 10-05-2012, 11:45 AM

I had this happen to me also for about 6 fill ups would not go past 3/4 mark. then one day while driving around the gas gauge moved to full mark and knock on wood

, so far after 3 fill ups seems to be working fine now when I go and fuel up.

soconfoozed · 10-05-2012, 11:58 AM

Call Subaru customer service instead. They'll tell you to go to the gas station. I don't know what I would do without those guys.

SF-FRS · 10-05-2012, 04:22 PM

Good to hear I'm not alone....

Bristecom · 10-05-2012, 05:14 PM

This is just how the Denso or the fuel tank manufacturer (I forgot their name) designed it. My current car is also like this. It takes a few minutes or so after refueling to get an accurate reading and sometimes when you're on a hill or something, it can be a little off. So yeah, annoying but I'm pretty sure that's just how it is so there's no sense demanding a fix.

Edit: I suppose this may not be the same issue if it never goes past 3/4 tank... In which case, that is a bit strange. All the more reason I wish it had a digital miles until empty display.

smbrm · 10-05-2012, 11:00 PM

I have seen this once when I only filled up to full with <10 litres!

10-04-2012, 08:27 PM	#1
SF-FRS Member Join Date: Jun 2012 Drives: 2013 Scion FRS Location: SF Bay Area Posts: 55 Thanks: 5 Thanked 13 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Gas needle not pointing to full I just went to the gas station and topped off the gas tank.....But when I went to start the car....it wasn't showing full....Hmmm __________________

10-05-2012, 11:58 AM	#9
soconfoozed Senior Member Join Date: Jun 2012 Drives: 2013 BRZ Limited 6MT WR Blue Pearl Location: San Diego Posts: 147 Thanks: 27 Thanked 90 Times in 47 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Call Subaru customer service instead. They'll tell you to go to the gas station. I don't know what I would do without those guys. __________________ 2013 BRZ Limited 6MT WR Blue Pearl

10-05-2012, 04:22 PM	#10
SF-FRS Member Join Date: Jun 2012 Drives: 2013 Scion FRS Location: SF Bay Area Posts: 55 Thanks: 5 Thanked 13 Times in 11 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Good to hear I'm not alone.... __________________

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10-04-2012, 08:29 PM	#2
einzlr Senior Member Join Date: Sep 2012 Drives: several Location: norcal Posts: 903 Thanks: 421 Thanked 286 Times in 223 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Gas gauges do that; they're not precision instruments. Don't even worry about it

10-04-2012, 10:46 PM	#3
roddy Senior Member Join Date: Apr 2012 Drives: '13 Ultramarine Location: Ontario Canada Posts: 2,243 Thanks: 1,476 Thanked 1,165 Times in 685 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I think I know what you are talking about. This has happened to me a few times as well. Every once in a while, when I fill the car, the needle stops about a needle's width short of full. The first time it happened, I made it a few blocks, and thought WTF? I pulled into the next gas station and managed to pump about 30 cents worth into it.

10-04-2012, 11:07 PM	#4
fistpoint Senior Member Join Date: Dec 2011 Drives: Supercharged Golf Cart Location: Estados Unitos Posts: 1,196 Thanks: 75 Thanked 364 Times in 206 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Several people have mentioned this for this car. I think I prefer the Honda method which is often erroneous too. In their case it reads full for the first 3 gallons of usage then drops off significantly. I remember in my older Si's that I would make it a game to get as many miles as possible before the needle moved. Just over 100 is my record which is almost 1/3rd of the tank.

10-05-2012, 11:45 AM	#8
FR-S Hot Lava Member Join Date: Jul 2012 Drives: FR-S Hot Lava (AT) Location: British Columbia, Canada Posts: 41 Thanks: 15 Thanked 17 Times in 14 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I had this happen to me also for about 6 fill ups would not go past 3/4 mark. then one day while driving around the gas gauge moved to full mark and knock on wood , so far after 3 fill ups seems to be working fine now when I go and fuel up.

10-05-2012, 11:00 PM	#12
smbrm Senior Member Join Date: May 2010 Drives: Scion FRS Ht Lva(AT) Location: Alberta Posts: 409 Thanks: 30 Thanked 81 Times in 54 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I have seen this once when I only filled up to full with <10 litres!

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