My two pence worth - After searching the web for what exactly GTI means, I was only able to ascertain that it either stands for Grand Touring Injection or Grand Tourer Injection. IMO neither the petrol or the diesel version of the Golf qualify in my eyes as a Grand Tourer as I would have thought them to be too compact, however both models have fuel injection. During my search, I found no explanation that a GTI can only be powered by a petrol engine either, so my conclusion is neither can be called 'GT' yet both are equally entitled to be called 'I'Yes, but they can also use peanut oil, rapeseed oil, sunflower oil or in fact any old oil you like, so your actually being ripped off by every garage that sells you DIESEL OIL for nearly ?5 a gallon !!!!!
Why do nearly all TDI owners insist its the real GTI. ITS NOT, It's A Diesel with some nice trim and it goes well. It is not a GTI, see your VW history book, GTI's only ever came in petrol and as far as I know, still do !!! You can carry on telling yourself that you have a GTI, but you haven't. You have a TDI, which has it's roots set firmly in about 199?, not 1976 !!!
Sorry for the rant mate, but just had to get that one out. Feeling much better now, thanks.
However it's still a Golf, so thats OK in my book. Just don't tell me it's the real GTI.