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Wrong place to ask. You're askin in WA fourms, and WA only has bp98.

ya wrong there keefy

we have vortex 98 and peak 98 which are supplied to them by mobil ( i have asked a few ppl that work at caltex to find that out )

mobil 98 contains touline and ethanol which in an older car can cause fuel lines to disintegrate

me i stick to bp ultimate unless i am running real low then i just throw a few dollars of the other in till i get to a bp

also touline deteriorates you might fill up at 100 octane or higher and end up with only 94/95 octane at end of tank so that aint to crash hot for a car thats tuned for 98

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they have just got the Vortex 98 at the servo my work is connected to still waiting to try it out... the guys working in the caltex said its selling pretty well, dont think it will be any better then the BP 98 but... just my 2c worth >_<

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I have been told that all the fuel is made in the same refinery.

Each fuel company just adds a different additive to differentiate who's petrol is who's.... I have no idea if these additives actually have any affect on the petrol, performance wise.

But, I am pretty sure that most fuel in perth comes from the same refinery in kwinana....

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You ought to be able to make more power from the Vortex 98, if the number is brought up by toluene. As for the fuel line perishing in a 1989+ skyline, I think thats rubbish. Toluene has no such effect. Ethanol in higher levels will cause some issues but, I'd say there would be less than 5%.

Someone with a Power FC could easily take a look at knock readings and if tuned for BP 98 there should be a reduction in the readings with Vortex. You may even be able to add a degree or two of timing in the corrections setting without a change in knock levels , which of course means more power, if the balance of the octane number is boosted by tolunene.

I have no issue with using either fuel, I have used both regularly without any concern.

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