Its an 8valve gti using 97 RON ultimate unleaded.
Er.... higher ron should be better, but the pinking was really bad around 3000rpm.
The guy who comes is really good, he mentioned that it is possibly something to do with the cylinder travel inside the block. One of them is probably knackered.
I am wondering whether it could be the timing belt, or something to do with the cam possibly being modified in the past.
Not sure.... I love my golf, the project is at a complete stop now...
