For me, OCW and M156/UQW. Both are fine for the wells/etc. and I`m using them on things like exterior trim anyhow (using OCW on the whole A8 as it`s just *so* quick and easy).
I`ve gotten in the habit of using the UQW on the wells/undercarriages/etc. as it really does help them stay cleaner and clean up better. Sorta surprised me how much better, compared to the leave-stuff-behind QDs I`d been using previously (and which I still need to use up somehow).
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