Technically you shouldnt use this in an xu10 engine as its 5% ethanol
You should use 97ron or higher though as thats what the book says.
I normally just get 95 though but it runs better on vpower or sainsburys/bp 97 definetly
The advice on which engines can run on ethanol is a bit misleading at times. It says you can't use it in a Peugeot, but you can in a Citroen. Same engine, same management. Unless the fuel pumps or the OEM fuel filters and hoses in 306s won't take it, it shouldn't be a problem.
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Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660