Careful with both the purple stuff and simple green, they both can cause light corrosion
and will sort of bleach paint
and leave streaks, I think they are caustic.
Try spraying simple green on polished aluminum
wheels and see what happens. Like a fool I used the purple stuff on my engine
as I had an oil leak
from an external oil filter
mount and it streaked the paint
, and I know better, just got stupid and forgot.
Usually you can get away with it if you throughly wet the engine
first, but I should have used plain ole soap and hot water
Two schools of though, keep it clean and dry or spray a preservative on it, both work. I use Corrosion-X on an outboard
as you just can't always keep them dry. If you don't like it Corrosion
-X washes off easily
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