also, can u feel the difference?

 

Doesn't Sunoco offer a 94 Octane???

Though, I'vwe never used it. . .

 

i've used the Unocal 76 100 octane "racing" gas at the pump (~$4 a gallon) for fun, and no differences whatsoever.

 

Different countries use different methods to rate the fuel. The US uses, RON+MON/2. So compared to some countries, we have a lower octane fuel then they do if they use just the RON rating.

Lance

 

In canada we use the same system. The best here is Sunoco 94
I use it exclusivly

 

Our highest is 98 from Shell

 

And now BP has one out too, but I haven't used it yet tho.
But I have filled up with 95 RON (Premium Unleaded) fuel and next tank filled up with the Shell 98 one on my ITR, and I think it makes a difference. It's better for your engine to iuse the highest RON available anyway.

Also I think (and I may be REALLY wrong here but) we have a different measuring system to the US/Canada ... That would explain why the new WRX are coming with the old engines, cause the Oz fuel is not of the octane level that it is in Japan, whereas the US is getting the new engines in Rexes.

Just my 5 cents