Hello.
There seems to be a bit of an issue with getting hold of V-power at the moment and Shell are, predictably, less than helpful when it comes to letting us know when some may turn up which is less than ideal when the RS3 is your daily driver.
I have the 99 RON APR map on my car and I've spoken to the guys who did it and they only recommend using V-Power and Momentum 99.
What I was wanting to know was if worst came to worst do octane boosters actually work so that you could use some other fuel and make it up to the correct RON?
Thanks for any advice.