VW guys use pine oil on their bumpers. I believe it had a habit of catching fire in direct sunlight so be careful where you leave the rag afterwards.
@ChrisL @GT86_Dave any feedback on the blackWOW? purchased a van and the mouldings need a serious revive
+1I always use megs purple tyre gel on the trim on the BM and the Golf, its incredible haha... Good on the tyres too funny enough! ;-)