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

najerawilliam65 · 05-09-2019, 11:42 PM

Can a Subaru BRZ etc .. use 87 ethanol free gas . My state only carries that .

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NoSloppy · 05-10-2019, 01:19 AM

Add octane booster, then sure.

najerawilliam65 · 05-10-2019, 02:25 AM

Quote:

Originally Posted by NoSloppy

Add octane booster, then sure.

What will the octane booster do . Sorry my knowledge on this isn’t good . So to be clear I can put 87 ethanol free octane in a 86/BRZ/frs

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Mr.ac · 05-10-2019, 02:48 AM

So.... your saying your too cheap to put 91 and want to save $2-3 for a tank full?

Yeah, you can but I'll drive like a grand ma so you won't get the engine knock.

NoSloppy · 05-10-2019, 03:59 AM

No, I think he's saying the only ethanol free version is 87 octane. Probably has higher octane out of the pump available but not ethanol free.
to answer your question the car is recommended to have 93 or higher. Adding octane booster you can bump up the 87 to at least 93. Here:
https://tinyurl.com/yxkyzfqy

Tcoat · 05-10-2019, 07:00 AM

The car is recommended to have 93 or higher but is required to have a minimum of 91. The car is also designed to run on up to 10% ethanol so there is zero advantage in getting ethanol free. It is not a 1954 Buick.

Yoshoobaroo · 05-10-2019, 07:22 AM

If anything get MORE ETHANOL!

Any modern car's fuel system can handle ethanol. Thousands of Subarus are running E85 without issues.

NoHaveMSG · 05-10-2019, 08:53 AM

I had a gas station attendent put 87 in my car and the IAM dropped to .4-.5, don't run it.

Dr. BRZ · 05-10-2019, 12:52 PM

It's going to run like total shit.

gravitylover · 05-10-2019, 12:55 PM

The only reason to use non-e is to quiet the crickets down. Run the regular 91 or 93 and don't worry about them, don't run 87 except in a pinch.

DarkSunrise · 05-10-2019, 02:29 PM

Quote:

Originally Posted by NoHaveMSG

I had a gas station attendent put 87 in my car and the IAM dropped to .4-.5, don't run it.

Yeah even on 91 octane, I've seen my IAM drop to 0.66. Pretty surprising compared to the 0.96-1.00 I was used to seeing on east coast 93 octane.

I can only imagine how low the IAM would drop running 87 octane regularly.

finch1750 · 05-10-2019, 02:36 PM

Zero reason to run 87. The crickets are not a problem if that is what you are trying to solve.

BirdTRD · 05-10-2019, 03:23 PM

Wanna hear something funny? Knock Knock...

Tcoat · 05-10-2019, 03:26 PM

Quote:

Originally Posted by BirdTRD

Knock Knock...

05-09-2019, 11:42 PM	#1
najerawilliam65 Junior Member Join Date: May 2019 Drives: Subaru BRZ Location: Las Vegas Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Gas ethanol Can a Subaru BRZ etc .. use 87 ethanol free gas . My state only carries that . Sent from my iPhone using Tapatalk

05-10-2019, 02:48 AM	#4
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,368 Thanks: 709 Thanked 1,559 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	So.... your saying your too cheap to put 91 and want to save $2-3 for a tank full? Yeah, you can but I'll drive like a grand ma so you won't get the engine knock. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

05-10-2019, 07:00 AM	#6
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	The car is recommended to have 93 or higher but is required to have a minimum of 91. The car is also designed to run on up to 10% ethanol so there is zero advantage in getting ethanol free. It is not a 1954 Buick. __________________ Racecar spelled backwards is Racecar, because Racecar. Last edited by Tcoat; 05-10-2019 at 09:23 AM.

05-10-2019, 12:55 PM	#10
gravitylover Senior Member Join Date: Nov 2014 Drives: 2013 BRZ Premium 6MT White Location: SE NY Posts: 1,503 Thanks: 1,218 Thanked 669 Times in 474 Posts Mentioned: 7 Post(s) Tagged: 1 Thread(s)	The only reason to use non-e is to quiet the crickets down. Run the regular 91 or 93 and don't worry about them, don't run 87 except in a pinch. __________________

05-10-2019, 02:36 PM	#12
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Zero reason to run 87. The crickets are not a problem if that is what you are trying to solve. __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

05-10-2019, 01:19 AM	#2
NoSloppy Junior Member Join Date: Jul 2018 Drives: 2015 FR-S Location: Long Island Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Add octane booster, then sure.

05-10-2019, 03:59 AM	#5
NoSloppy Junior Member Join Date: Jul 2018 Drives: 2015 FR-S Location: Long Island Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	No, I think he's saying the only ethanol free version is 87 octane. Probably has higher octane out of the pump available but not ethanol free. to answer your question the car is recommended to have 93 or higher. Adding octane booster you can bump up the 87 to at least 93. Here: https://tinyurl.com/yxkyzfqy

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