A friend has just had his Fabia VRS service at my local Skoda Retailer, and listed on the service sheet was injector cleaner. I thought Skoda do not recomend additives to the fuel system, so what sort of cleaner did the dealer use as to not invalidate the warranty?

They dont, naughty naughty.

Thanks Ross, mmm Should I name and shame the Garage????

My dealer sells Forte, go figure.

So does the fiat dealer I frequent for my wifes Punto. Again go figure

Forte is a popular one and they usually warranty engines etc themselves. i.e they know thier product won't/can't damage your engine so offer to pay for any damage as a direct result of using thier product.