On Wednesday, 29 April 2020 09:58:08 UTC+1, Spike wrote:
On 28/04/2020 15:25, Tricky Dicky wrote:

My neighbour has been given a car by her family which has stood for a considerable time under a Sycamore tree. She asked me to pressure wash it down which I duly did and also a good soapy wash down and rinse. When I tried to chamois it down after it was still very sticky and instead of the chamois removing the water marks it has left streaks with fine bits of chamois powder mixed in. Any suggestions how to get rid of the sap other than repeated washing?

Try using a branded car polish that smells of solvent. Usual disclaimers
apply...

Surely buying the solvent is many times cheaper, if the OP doesn't have any..