Quote Originally Posted by Hullabaloo View Post
50. Wazza asks:
The JDM Type R Civic mentioned previously produces far superior power than the UKDM Type R and yet they both use the K20 block. Is the exclusion of the JDM engine in the UK and AUS Type R's purely a case of our poor quality fuel?
Peter McDowell answers:
Essentialy it's the same engine. The spec change is largely due to our reduced (in comparison to Japan) fuel RON spec. Our premium fuel as you probably know is 95. 98 is available here and there, but we must always work to 95. This requires a reduced compression ratio, and retuning the ECU. We all hope fuel will improve somtime in the future.


yet the golf gti recommends 98 RON
I think it's Honda Australia's decision to make all their vehicles require at most 95 RON. Nothing is stopping them for going for 98, but I guess someone higher up disagrees with that.