The brake cleaner spray I use is relatively cheap and does a great job cleaning my tools. After an oil change, I spray oily stuff and they become clean. The sprayed brake cleaner evaporates and dry fast. I found the approach quite easy and efficient.
I like to expand the use of the brake cleaner to the actual engine area such as the dirty oil cap and inside the oil filter area. Is there any side effect with that?
In general, what are the side effects when I use brake cleaner spray on stuff other than the actual brakes?