It worked for me

it will remove it however you might want to pre-soak the tape with mild soapy water prior to using removal agent.
it will make your life so much easier doing it this way.
method...
pre soak tape marks for about 1-2hrs (and i dont mean dripping wet just dampen the marks)
use removal product (test on hidden area of vehicle prior to use) on affected areas (do not use abrasive pad as this will leave fine scratches and possibly ruin your finish) personally i use a string type cloth or a soft sponge.

reason for testing on hidden area first is that the cleaning agent may affect the colour of your trim and if organic trim (leather etc) it may leave a dry patch so be carefull when using cleaning products on your interior.
i hope this helps.

Yes

it does not officially state that it removes tree sap from surfaces, you could try it but if it dosnt succeed they dont claim that it does.
my personal experience with tree sap that has fallen onto a vehicles surface is to treat it as follows.
find or purchase a strong plastic spatula relatively thin at the end (some are quite rounded at the end), use this to take off the main lump of sap (provided it has gone hard), be very gentle when trying to remove as u may scratch your paintwork even with a plastic spatula. Do NOT try and remove like you would remove wallpaper this will definitely destroy your paintwork. Once u have as much off as possible (you should be left with a kind of sap outline still) i then use t-cut to eradicate then outline from the sap.
The alternative is to use chemical based "solvents" which will dissolve the sap to a stage where it can be wiped off with an appropriate cloth, after which you would need to either t-cut and wax or just wax to restore your original finish.

the result you get all depends on how long the sap has been sitting on the vehicle.
Also make sure that it is sap you are trying to remove and not honeydew which is a waste product dropped from aphids and the like. the two have very different removal methods.