Scott.T@PolarPerformance

There seems to be alot of threads about recently about lack of SUL in some areas and some people stating they are seeing Knock activity different of late.

Is there something going on that we don't know about.

My own car recently has a bit of knock activity and it's been running unchanged with Knock level on the Apexi only ever getting to around 17 for about 12-18 months.
this weekend I had a 24, 36 and even a 72

I always use Esso SUL with the odd tank of Tesco 99 or V-Power. But genrally 90% of the time it's Esso as it seems consistent, which optimax never was............