I am old school and I remember the 60s, 70s Auto paint jobs stood up well to a good old waxing! If needed you could use a good rubbing compounding before the paste wax on the old paint jobs, they stood up well to it. I have this sap material that just doesn't seem to go away with various fluids. I am concerned about damaging the clear coat. I have some older paste wax/compound that may be 15,20 years old#
I know I should most likely buy some more recent LIQUID (vs paste) products which I also have.
any experience with that would be appreciated
vehicles are 2004 2006 and 2010

 

Any of the new products should be compatible with a clear coat finish. I would just go buy some of that. I have used Turtle Wax paste type polishing compound in the past and had good results with no damage. Whatever you get, read the label before using it.

 

Sap dissolves in alcohol. Try denatured alcohol. I used it before for cleaning.
Yes, you can rub through clear coat.

 

Clay-bar it before compounding. That'll remove most impurities like sap & oxidation.

 

I would get a liquid based solution.

 

I've always used mineral spirits to remove sap that wouldn't wash off .... but as a painter, that is a solvent I always have on hand it will also remove any wax but that is easily rectified.