I'm confused. Is this actually more of a clatter than "ping" sound? I used to get that loads before I changed over to Optimax. I always get confused when people say pinking, as that doesn't really describe anything? The colour pink?Its when the engine makes a pinking/pinging sound either through the revs or at a standard speed!
Says 95-98 on mine. Sure it'll run on 95, but less than optimally. I believe manufacturers' output figures are based on the highest recommended grade. In Germany, where many things we consider as high grade are the norm there, Shell has V-Power, 100 RON [:O]I had this problem with mine. It turns out that VW petrol engines are not designed for 95ROIN standard unleaded. As the dealer pointed out to me, on the inside of the filler flap it says it needs 98ron fuel