Gas Gauge - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

jcb476 · 08-20-2018, 06:29 PM

Forgive me if this has been covered in another thread in the past. As a new member, I did a search but found nothing like what I am experiencing.

I purchased a 2013 FR-S a week ago. Yesterday, I had about 3/4 of a tank of gas and I was going to top it off to full. After filling up, I got back in the car and noticed that gas gauge had not moved from the 3/4 mark to full. Has anyone else had this happen or know what might be the cause?

I am going to drive the car for a while longer to see if the gauge drops. If it does, I will then fill it up again and see if the needle points to full or not.

22R · 08-20-2018, 07:22 PM

Happened to my 17 86 once. From what I read it is normal as it is a compensation thing so that the fuel gauge stays pretty steady so a small change it won't register. Mine never did it since but I usually always fill it at least below 3/4 tank.

22R

jcb476 · 08-20-2018, 07:27 PM

Thanks 22R. Hopefully the gauge will drop as I continue to drive it, and then I will fill up the tank and see where the needle points at that point, being there will be a greater distance to move at that time.

Ultramaroon · 08-20-2018, 08:22 PM

Normal for this car. Just don't fill until below a half tank.

stevesnj · 08-20-2018, 09:46 PM

Quote:

Originally Posted by jcb476

Forgive me if this has been covered in another thread in the past. As a new member, I did a search but found nothing like what I am experiencing.

I purchased a 2013 FR-S a week ago. Yesterday, I had about 3/4 of a tank of gas and I was going to top it off to full. After filling up, I got back in the car and noticed that gas gauge had not moved from the 3/4 mark to full. Has anyone else had this happen or know what might be the cause?

I am going to drive the car for a while longer to see if the gauge drops. If it does, I will then fill it up again and see if the needle points to full or not.

Was the car running while you were filling it or the ignition at the "on" position?

jcb476 · 08-21-2018, 12:59 AM

No, the car engine was completely off.

metalmoses · 08-21-2018, 07:15 PM

I've noticed this as well on my car, it is a 2013. I've just waited until the gauge drops to 1/2 tank and you won't see the issue. Not sure why this happens on our cars

jcb476 · 08-21-2018, 07:24 PM

Quote:

Originally Posted by metalmoses

I've noticed this as well on my car, it is a 2013. I've just waited until the gauge drops to 1/2 tank and you won't see the issue. Not sure why this happens on our cars

Very interesting. At least I'm not alone. I will definitely wait until it drops below 1/2 to fill. Until then, until the tank drops below 3/4, it will look like I'm getting GREAT gas mileage.

extrashaky · 08-21-2018, 07:57 PM

Quote:

Originally Posted by metalmoses

Not sure why this happens on our cars

Because these cars are built for violent lateral maneuvers that slosh the gas around in the tank and would make your fuel gauge bob up and down like a cheerleader's head on prom night if it wasn't designed to dampen out small changes in level.

02.ACCORD.DUDE · 08-28-2018, 02:29 PM

While on the topic of the gas gauge... How much is typically left in the tank when the gas light comes on?

Tcoat · 08-28-2018, 02:34 PM

Quote:

Originally Posted by 02.ACCORD.DUDE

While on the topic of the gas gauge... How much is typically left in the tank when the gas light comes on?

Loads.
Mine comes on pretty much weekly. Have driven as many as 30 miles after it comes on and have never run out.

02.ACCORD.DUDE · 08-28-2018, 02:51 PM

Quote:

Originally Posted by Tcoat

Loads.
Mine comes on pretty much weekly. Have driven as many as 30 miles after it comes on and have never run out.

I think I've hit around 40-50, I was just curious if anyone had an "exact'er" number as I'm going to be traveling to Canada this weekend and who knows how many miles I'm going to have to drive to get gas when there

Tcoat · 08-28-2018, 02:56 PM

Quote:

Originally Posted by 02.ACCORD.DUDE

I think I've hit around 40-50, I was just curious if anyone had an "exact'er" number as I'm going to be traveling to Canada this weekend and who knows how many miles I'm going to have to drive to get gas when there

The consensus seems to be about 3 gallons remain when the light comes on.

Where are you going in Canada? You realize we have gas stations all over just like you do right?

02.ACCORD.DUDE · 08-28-2018, 03:02 PM

Quote:

Originally Posted by Tcoat

The consensus seems to be about 3 gallons remain when the light comes on.

Where are you going in Canada? You realize we have gas stations all over just like you do right?

Haha of course, I was just pulling your leg. I've been numerous times before - just never drove the distance in the FR-S.

08-20-2018, 08:22 PM	#4
Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,395 Thanks: 53,053 Thanked 37,228 Times in 19,308 Posts Mentioned: 1118 Post(s) Tagged: 9 Thread(s)	Normal for this car. Just don't fill until below a half tank. __________________ service manuals

08-21-2018, 07:15 PM	#7
metalmoses Member Join Date: Aug 2012 Drives: 2013 Scion FR-S Firestorm MT Location: Smyrna, TN Posts: 50 Thanks: 34 Thanked 27 Times in 16 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I've noticed this as well on my car, it is a 2013. I've just waited until the gauge drops to 1/2 tank and you won't see the issue. Not sure why this happens on our cars __________________ Parts List: Perrin CAI + Borla UEL Header + Perrin Overpipe + Invidia Front Pipe w/ High-Flow Catalytic Converter + FT-86 SpeedFactory V1 Exhaust + 10k HID's + Eibach Sportsline Springs + TRD Spoiler + Rear Diffuser + Rear Spats + OFT Stage 2 Tune +18" Enkei Black Raijin Wheels (18x8 +45 up front 18x9.5 +45 in rear) Tire Specs: 235/40R18 in the front, 265/35R18 in the rear

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08-20-2018, 07:22 PM	#2
22R 22R Join Date: Apr 2017 Drives: 2012 Camry SE 2017 Toyota 86 Location: South Louisiana Posts: 236 Thanks: 233 Thanked 141 Times in 79 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Happened to my 17 86 once. From what I read it is normal as it is a compensation thing so that the fuel gauge stays pretty steady so a small change it won't register. Mine never did it since but I usually always fill it at least below 3/4 tank. 22R

08-28-2018, 02:29 PM	#10
02.ACCORD.DUDE Car N00B Join Date: Nov 2014 Drives: Honda Accord (2002) Location: NJ Posts: 318 Thanks: 299 Thanked 136 Times in 79 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	While on the topic of the gas gauge... How much is typically left in the tank when the gas light comes on?

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