I've just finished spending about 6 hours working on the car.
Wash, clay bar, glaze and wax.
Trouble is, although lots of "stuff" was coming off on the clay bar, none of the large blobs of sap would move. I tried pushing harder with the clay and "pulling" it across the lumps, but this just scratched the paint.
I tried autoglym "intensive tar remover" on them and nothing happened. Also tried turtle wax bug, tar and tree sap remover - again - no result.
So now they're safely waxed-in for the winter.
Am I doing something wrong, here? Does anyone have any ideas of how to shift tree sap? I'm gutted to have spent so long on the car (and it's only half way finished), for the underlying problem (the huge great lumps of tree sap all over the bonnet and roof) to remain unresolved. Infact, it now looks worse as these lumps show up really badly in the mirror-like finish surrounding them.
Absolutely gutted and at a loss for what to try next. One option is to book it into a bodyshop (for a few hundred quid - and to have it come back covered in swirl marks), but I would love to know if anyone has solved the problem before?
Deek.