Toyota 86 Fuel Consumption - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

yooooooo · 03-19-2021, 05:44 AM

Hey guys so I recently bought a 2019 Toyota 86 GTS used from a dealer. I drive pretty well by always shifting below 3k and coasting whenever I can. However the gauge shows that I do 10.5L/100km. I drive half suburban and highway. Also when I unscrew the gas cap it makes a hissing noise? Is this normal?

soundman98 · 03-19-2021, 08:54 PM

come on, bang it off redline a few times!

it's way more fun of a car 4k-7k rpm. it's a camry 1-3k rpm...

gen3v8 · 03-20-2021, 04:12 AM

Quote:

Originally Posted by soundman98

come on, bang it off redline a few times!

it's way more fun of a car 4k-7k rpm. it's a camry 1-3k rpm...

You wish it was a Camry from 1-3k

Wally86 · 03-22-2021, 05:24 PM

You just made me convert from lkm to gpm and I guess I'm getting 12.97L/Km on average (30.5mpg) with a 2020 and the 4.3 rear on 93 octane (US, 98/100 UK equivalent gas). I also drive like an old grandma.

10.5L/Km is 24.7mpg and that seems like a number from a person with a little heavier foot but not too heavy. I know these things will get into the teens if you try to beat them to death.

Roge · 03-26-2021, 04:55 PM

Quote:

Originally Posted by yooooooo

Hey guys so I recently bought a 2019 Toyota 86 GTS used from a dealer. I drive pretty well by always shifting below 3k and coasting whenever I can. However the gauge shows that I do 10.5L/100km. I drive half suburban and highway. Also when I unscrew the gas cap it makes a hissing noise? Is this normal?

Mine's running at just under 7l/100km on 98 and there is no vacuum when opening the cap. Sounds like a pinched breather. I am not overly gentle with it driving it so I get that little grin.

Ultramaroon · 03-26-2021, 07:45 PM

Breather? Do you guys vent your fuel vapors down there? Fuel tank should be under a slight vacuum.

Decimus · 03-26-2021, 08:50 PM

Sounds about right, similar mileage for me when i run 91. On E85 i get 21mpg consistently but that’s a given since E85 burns faster

Kenno · 03-31-2021, 12:32 AM

Has the car been turbocharged? Just asking as mine has been turbocharged with e85 conversion, bigger injectors, upgraded fuel pump, etc and I'm currently getting 10.6 L/100km.

Roge · 04-03-2021, 09:01 AM

Quote:

Originally Posted by Ultramaroon

Breather? Do you guys vent your fuel vapors down there? Fuel tank should be under a slight vacuum.

There must be away that air is getting into the tank to maintain the "slight vacuum" or else it would become a big vacuum.
The recommended RON here in Aus is 98.

Ultramaroon · 04-03-2021, 03:50 PM

Quote:

Originally Posted by Roge

There must be away that air is getting into the tank to maintain the "slight vacuum" or else it would become a big vacuum.
The recommended RON here in Aus is 98.

I learn more about engaging in these weird conversations than I do working on my own stuff. Until now I casually figured the intake manifold was the only inlet/outlet for evap. Looky there! Item-c is the fresh air line controlled by a vent valve.

03-19-2021, 05:44 AM	#1
yooooooo Junior Member Join Date: Mar 2021 Drives: Toyota 86 GTS 2019 Location: Sydney Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Toyota 86 Fuel Consumption Hey guys so I recently bought a 2019 Toyota 86 GTS used from a dealer. I drive pretty well by always shifting below 3k and coasting whenever I can. However the gauge shows that I do 10.5L/100km. I drive half suburban and highway. Also when I unscrew the gas cap it makes a hissing noise? Is this normal?

03-19-2021, 08:54 PM	#2
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,675 Times in 6,782 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	come on, bang it off redline a few times! it's way more fun of a car 4k-7k rpm. it's a camry 1-3k rpm... __________________ "The time you enjoy wasting is not wasted time"

03-22-2021, 05:24 PM	#4
Wally86 Be Kind Join Date: Apr 2020 Drives: 2020 86 Location: MD Posts: 1,128 Thanks: 5,611 Thanked 1,323 Times in 636 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	You just made me convert from lkm to gpm and I guess I'm getting 12.97L/Km on average (30.5mpg) with a 2020 and the 4.3 rear on 93 octane (US, 98/100 UK equivalent gas). I also drive like an old grandma. 10.5L/Km is 24.7mpg and that seems like a number from a person with a little heavier foot but not too heavy. I know these things will get into the teens if you try to beat them to death. __________________ [Insert clever signature here] IG \| WhiskyBlog \| Photography

03-26-2021, 07:45 PM	#6
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: 1117 Post(s) Tagged: 9 Thread(s)	Breather? Do you guys vent your fuel vapors down there? Fuel tank should be under a slight vacuum. __________________ service manuals

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03-26-2021, 08:50 PM	#7
Decimus BAE Join Date: Nov 2014 Drives: Asphalt FRS Location: SGV Posts: 587 Thanks: 152 Thanked 97 Times in 77 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	Sounds about right, similar mileage for me when i run 91. On E85 i get 21mpg consistently but that’s a given since E85 burns faster

03-31-2021, 12:32 AM	#8
Kenno Senior Member Join Date: May 2012 Drives: Toyota 86 GTS 6M Location: Brisbane, Australia Posts: 105 Thanks: 27 Thanked 69 Times in 33 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Has the car been turbocharged? Just asking as mine has been turbocharged with e85 conversion, bigger injectors, upgraded fuel pump, etc and I'm currently getting 10.6 L/100km.

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