98 RON - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

86drift · 06-13-2012, 01:05 AM

I just read that the Aussie version requires 98 (RON) octane and the US requires 91 (AKI).

Since the Wikipedia gods say that 95RON = 90-91AKI, we should be able to use that...

What are your thoughts?

"Fuel requirement: Premium unleaded gasoline (91 octane). Recommended: 93 octane." from www.subaru.com

coyote · 06-13-2012, 01:08 AM

You really want to give up power and torque for the sake of a few cents per litre?

86drift · 06-13-2012, 01:15 AM

Quote:

Originally Posted by coyote

You really want to give up power and torque for the sake of a few cents per litre?

No. I'm thinking of running E85. But that's a different discussion.

I think we 'can' run 95RON.

coyote · 06-13-2012, 01:23 AM

Quote:

Originally Posted by 86drift

No. I'm thinking of running E85. But that's a different discussion.

I think we 'can' run 95RON.

E85 is a far more interesting discussion. I've been running my Liberty on ethanol for about 18 months and will be developing an E85 tune for these cars as soon as I am able.

You "can" use standard unleaded in your 86, but it won't make sense to run it on anything but 98.

davey90 · 06-13-2012, 01:41 AM

if only there was such thing as E86 instead of E85. Get it, get it?

no?

86drift · 06-17-2012, 07:24 PM

From the Aus Toyota 86 Spec page:

Fuel
- Fuel type Premium unleaded
- Fuel type octane no 98
- Minimum fuel octane number 95

atledreier · 06-18-2012, 03:16 AM

How much would one lose with 95RON vs 98RON.

Anything to gain by going to 99RON?

DriftEightSix · 06-18-2012, 03:24 AM

Quote:

Originally Posted by 86drift

From the Aus Toyota 86 Spec page:

Fuel
- Fuel type Premium unleaded
- Fuel type octane no 98
- Minimum fuel octane number 95

That is what I read too.

Varvs · 06-18-2012, 03:38 AM

higher octane does not equal more power.

i would be using 98 in summer for sure. 95 in winter might be ok.

450hp/tonne · 06-18-2012, 06:29 AM

The fuel flap said use 98 RON ONLY - I'd stick with that. The available fuels give extremely close fuel consumption in terms of $/km of fuel used (my drive cycle isn't out of the ordinary), so any risk is for no gain.

nix · 06-18-2012, 07:28 AM

Unless you have done some funny business with the intake/MAF or retuned the stock ecu the risk you are talking about is 0.0000000000000000000000%

And covered by a warranty.

Varvs · 06-18-2012, 11:29 AM

I wouldn't count on warranty covering anything if you directly disobeyed fuel reccomendations.

By your logic I could fill up with diesel and get a new fuel system/engine for free.

FT-86GOD · 06-18-2012, 11:54 AM

Quote:

Originally Posted by Varvs

higher octane does not equal more power.

Wrong...

nix · 06-18-2012, 11:59 AM

Quote:

Originally Posted by Varvs

I wouldn't count on warranty covering anything if you directly disobeyed fuel reccomendations.

By your logic I could fill up with diesel and get a new fuel system/engine for free.

Edit.. trying to be nice. It's min 95 RON. As per OP's update to his own thread. As per Toyota doco.

No need to scaremonger people (BP's marketing really works).

06-13-2012, 01:05 AM	#1
86drift Join Date: Jun 2012 Drives: Toyota 86 GT Location: Sydney, Australia Posts: 517 Thanks: 85 Thanked 263 Times in 147 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	98 RON I just read that the Aussie version requires 98 (RON) octane and the US requires 91 (AKI). Since the Wikipedia gods say that 95RON = 90-91AKI, we should be able to use that... What are your thoughts? "Fuel requirement: Premium unleaded gasoline (91 octane). Recommended: 93 octane." from www.subaru.com

06-13-2012, 01:41 AM	#5
davey90 Akina Speed Stars Join Date: Sep 2011 Drives: White 86 GTS Auto [CID- ***] Location: Sydney, Australia Posts: 1,017 Thanks: 337 Thanked 187 Times in 125 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	if only there was such thing as E86 instead of E85. Get it, get it? no? __________________

06-13-2012, 01:08 AM	#2
coyote Senior Member Join Date: Oct 2011 Drives: Slowly Location: brisbane.qld.au Posts: 1,064 Thanks: 212 Thanked 539 Times in 235 Posts Mentioned: 21 Post(s) Tagged: 1 Thread(s)	You really want to give up power and torque for the sake of a few cents per litre?

06-17-2012, 07:24 PM	#6
86drift Join Date: Jun 2012 Drives: Toyota 86 GT Location: Sydney, Australia Posts: 517 Thanks: 85 Thanked 263 Times in 147 Posts Mentioned: 24 Post(s) Tagged: 0 Thread(s)	From the Aus Toyota 86 Spec page: Fuel - Fuel type Premium unleaded - Fuel type octane no 98 - Minimum fuel octane number 95

06-18-2012, 03:38 AM	#9
Varvs Senior Member Join Date: Jan 2012 Drives: '97 180SX Type X Location: Sydney, Australia Posts: 139 Thanks: 7 Thanked 23 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	higher octane does not equal more power. i would be using 98 in summer for sure. 95 in winter might be ok.

06-18-2012, 06:29 AM	#10
450hp/tonne Member Join Date: Jun 2012 Drives: 2011 Corolla Ascent Sport Location: Melbourne, Australia Posts: 99 Thanks: 3 Thanked 36 Times in 21 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The fuel flap said use 98 RON ONLY - I'd stick with that. The available fuels give extremely close fuel consumption in terms of $/km of fuel used (my drive cycle isn't out of the ordinary), so any risk is for no gain.

06-18-2012, 11:29 AM	#12
Varvs Senior Member Join Date: Jan 2012 Drives: '97 180SX Type X Location: Sydney, Australia Posts: 139 Thanks: 7 Thanked 23 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I wouldn't count on warranty covering anything if you directly disobeyed fuel reccomendations. By your logic I could fill up with diesel and get a new fuel system/engine for free.

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