Marks on car body Paint

try some rubbing alcohol or hand sanitizer

 

I wouldn't use Simple Green Cleaner on my paint.
It's a degreaser.
It's marketed as something you can use from everything from cleaning your engine, to detailing your interior. But if it was me? I don't think I would use it on my vehicles painted finish.

 

Try waxing the fender?

 

You should bring it to a professional detailer who can tell you whether they think it can be corrected with a polisher. Otherwise, the paint may be permanently damaged.

 

Well it's a little confusing because it's marketed as being an "All Purpose" cleaner.
At their website, they say a diluted solution can be used for interior detailing.

But for me, as far as paint finish?
I would just buy a real "Car Wash" formula. Something specifically made to clean the exterior.

All purpose or otherwise, I'm not using something that can degrease my engine, on my clear coat and painted exterior finish.
Any major store's auto aisle should have multiple car wash formulas, designed to be used to clean the exterior of your car. They're not expensive.
I think keeping some around, even just for spot cleaning, is a good investment.

 

I can't figure out what I'm looking at. What's the story on the leaves and branches? And is there a whole zone that's gone off-colour, to a sort of olive drab??

 

Ok think I figured it out, it's just the discoloured zone circled in red. Yeah, have a pro detailer look at it.

 

Whats the deal with the crazy stencils? I would say use a clay bar but it may do something to those stencils.