We realised that we have 2 odometers. We think we have been watching B, although A tells us how far from Cheltenham we are. A currently says we have come approx 8,800km.
So there was good planning in getting the car serviced while in Mandurah. Rockingham Toyota did a 90,000 km service. They said they didn't find anything and that the next service would probably require new front brake pads.