All Shell gas here (CA nd NV) has ethanol as an octane booster. So much, in fact that they are now required to post the prescence of ethanol on each fuel pump. I never use Shell now.whatever kind you want the 2.5i doesn't require anything special, so you can run 87 if you like. the turbo models need 91 or higher. i've heard people swear by shell gas because it doesn't contain anything alcohols, it's just pure gasoline, but i'm impartial.
Age old debate.I too have the 2.5i hatch. So is there any benefit to filling with 89 or 91?