Hi guys,
I have cars in drawers, up on display shelves and on track as decorations and although I live in Queensland when I was living in Melbourne for a spell I also had the dreaded white mould happening down there as well. I wash is off with warm soapy water but it still returns and even spreads to other cars sometimes positioned adjacent to effected cars and sometimes 2 or 3 cars away. I thought someone told me they use WD40 or something similar but can't be 100% sure and I am unsure if the WD40 will damage the plastic let alone cause dome decals to come away.