G'day

Is anyone having issues with pinging. I run 98 only and have tried all the brands (best being Shell) but in fourth to sixth gear the engine costantly pings even when not under load.

I have informed Jeep on every service and they always come back with - We took a sample of the fuel and the fuel looked a bit suspect (exact words each time) try another service station.

Does anyone else have this problem or has a solution to this problem? opposed to turning the radio up.