Caution: it might have happened that some products have ingredients that dissolve marker pen, and such simple test might not be an indicator of cleaning ability of wax. The test surface was different from modern car finish.
Below is my toy test result on black non-clear-coat paint on a luggage cart.
I drew several line segments with Power Mark Plus Permanent Marker green, and waited several hours so that the maker pen polymers set and cure.
With the same amount of wiping with napkin,
Meguiars NXT wax liquid,
Meguiars Cleaner Wax,
TurtleWax Platinum Ultra Gloss paste wax
almost removed the mark on the paint surface, while
Meguiars Gold Class Bug & Tar Remover,
TurtleWax ICE Liquid Polish,
Meguiars NXT Tech Protectant,
TurtleWax F21 Super Protectant
transferred green color to napkin, but did not remove the mark on the paint surface.
Among those two vinyl protectants tested, NXT Tech Protectant did better at reducing the mark: after repeated wiping, TurtleWax F21 Super Protectant almost stopped transferring green color to napkin. I wiped that line segment with Meguiars NXT Tech Protectant, and saw that it transferred green color to the napkin. Then I wiped that same line segment with TurtleWax F21 Super Protectant and saw almost no color transfer. Then I wiped it with NXT Tech Protectant and saw color transfer.
Below is my toy test result on black non-clear-coat paint on a luggage cart.
I drew several line segments with Power Mark Plus Permanent Marker green, and waited several hours so that the maker pen polymers set and cure.
With the same amount of wiping with napkin,
Meguiars NXT wax liquid,
Meguiars Cleaner Wax,
TurtleWax Platinum Ultra Gloss paste wax
almost removed the mark on the paint surface, while
Meguiars Gold Class Bug & Tar Remover,
TurtleWax ICE Liquid Polish,
Meguiars NXT Tech Protectant,
TurtleWax F21 Super Protectant
transferred green color to napkin, but did not remove the mark on the paint surface.
Among those two vinyl protectants tested, NXT Tech Protectant did better at reducing the mark: after repeated wiping, TurtleWax F21 Super Protectant almost stopped transferring green color to napkin. I wiped that line segment with Meguiars NXT Tech Protectant, and saw that it transferred green color to the napkin. Then I wiped that same line segment with TurtleWax F21 Super Protectant and saw almost no color transfer. Then I wiped it with NXT Tech Protectant and saw color transfer.