lol

i had a golf mk4 v6 before my b5 s4, and one day while getting some warranty work done at the dealership, one of more senior engineers while on a test run with me to try and isolate some noises said "whatever you do don't use low octane unleaded in it as we've had a few in recently needing decoking", which of course meant diassembly and the cost associated with it. rather begrudgingly at the price, i then used the super or premium unleaded brands instead.
So... I guess having gained a paranoia

I spotted power boost in
http://potn.com 's catalogue and wondered whether it actually did the job.
I've just read through the reviews they have on their site, and they seem pretty good, but sounds as though it may have been a specific problem with the golf ?
My S4 is at about 84k at the mo.
http://www.ecotekplc.com/pb_reviews.htm
Thanks.