Ok, just clarify...
Mitchelstown in North Co. Cork is the ONLY official Maxol garage with E5.
The one beyond Ryan's 'may have' had E5 as my car ran so differently and better on it. The same can be said for the one in Clonakilty. However, since that week I have tried both garages again several times since and not had the same performance boost.
I have had 2 fill-ups in Mitchelstown though and that is the genuine stuff, yet drives no better than when I first tried the one by Ryan's on the way to the rolling road day we had. I can only assume that that fill-up was a one-off :dunno: