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      01-04-2013, 06:27 PM   #1
dr335e93
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100 octane race gas!

Was driving to shell to fill up with my usual vpower 98 and drove past a united petrol station which had premium 100 octane gas (called race gas in socal I think)! Looked it up and there's 10% ethanol added to Ron 98.
My tank was almost empty so I tried 10L and gave it a bang.
Impressive to punch the pedal but maybe I was just excited and imagined a touch more power.

Anyone else tried it? What did you think?

Ps Shane it's the Merewether united servo close to bar beach.
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      01-04-2013, 09:03 PM   #2
Fritzl
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Originally Posted by dr335e93 View Post
Was driving to shell to fill up with my usual vpower 98 and drove past a united petrol station which had premium 100 octane gas (called race gas in socal I think)! Looked it up and there's 10% ethanol added to Ron 98.
My tank was almost empty so I tried 10L and gave it a bang.
Impressive to punch the pedal but maybe I was just excited and imagined a touch more power.

Anyone else tried it? What did you think?

Ps Shane it's the Merewether united servo close to bar beach.
I dont think any of the major Petrol companies are adding any ethanol to their premium 98 RON.

As far as 100 octane would go, it would just add a little extra knock protection but no performance. You would need to adjust timing and a little extra boost for it to add anything.

Race fuel like MS109 is also oxygenated so would also add a little power without tuning but you would need to run a race gas map on your piggyback or cobb flash to utilize it.
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      01-05-2013, 03:46 AM   #3
BMJ
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Quote:
Originally Posted by dr335e93 View Post
Was driving to shell to fill up with my usual vpower 98 and drove past a united petrol station which had premium 100 octane gas (called race gas in socal I think)! Looked it up and there's 10% ethanol added to Ron 98.
My tank was almost empty so I tried 10L and gave it a bang.
Impressive to punch the pedal but maybe I was just excited and imagined a touch more power.

Anyone else tried it? What did you think?

Ps Shane it's the Merewether united servo close to bar beach.
I run a tank a month, norm is BP 98.... car goes though it a little quicker compared to 98 but i find the engine is a little smoother on it.
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      01-05-2013, 06:12 AM   #4
DR-JEKL
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How much is it dude in comparison to 98?

I may be old fashioned but IMO for such a small gain, I would just stick to what I know with the 98

I know the jdm boys in their rexlancerlines are getting huge power on E85....
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      01-05-2013, 07:38 AM   #5
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All the ethanol will allow you to do is to run more boost and timing with it being too unsafe. Of course this requires a tune to suit. Apart from that you may notice better combustion but won't see the full gain.
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