Bill Denton wrote:

Here in the US, paint thinner is not a product, it's a type of product.

No, what is sold as "paint thinner" is a specific product also known as "mineral
spirits". It will NOT damage cured auto/aircraft paint. If you go to an auto
paint store, you can buy reducers used to thin specific paints, but those are
not commonly sold in a container labeled "paint thinner". If you go to just
about any other type of paint or hardware store and ask for paint thinner, they
will sell you mineral spirits.

Now, here is the obvious: here in the states we clean automobile engines
with a product called "Gunk Engine Cleaner" which comes in an aerosol can.

Many people use this. Pete Kupper, who ran the maintenance shop at Kupper
airport until a few years ago, bought mineral spirits in 55 gallon drums for
use cleaning engines and other parts.

George Patterson
Some people think they hear a call to the priesthood when what they really
hear is a tiny voice whispering "It's indoor work with no heavy lifting".