This is becoming a challenge.
Finding a decent spray bottle that doesn’t crap out or the whole bottom reservoir doesn’t fall off, in use.
I have 20 year old bottles that work fine.
Avoid Hudson and Zep.

 

I typically recycle Windex or other brand name spray bottles as needed because the empties they sell are all junk.

 

Dawn dish soap, it works on ducks, lol

 

I read that too fast the first time...Definitely didn't see ducks.

 

If it is bad, us an old sponge or whatever you use for washing bike. I used my good one on my first, which most have a fork leak.

 

Brake cleaner directed at just the area of the engine that needs cleaning will do no harm or 2k paints and clear coat.

I have been using this stuff and it works really well on painted surfaces as well as bare metal.

Cleaner & Degreaser - XCP® PROTECTION (xcp-protection.com)

There is probably a million and one car detailing degreaser products out there.