Hi all ,
I asked a while ago about getting rid of tree sap , after I did a 1st clean , noticed some windows near a pine tree had a greasy / oily / waxy kind of substance still on them . I used wfp ( cold water) , virosol, trad - all with no luck .
Went back today , put cif on a cloth , rubbed it onto the glass , then trad and it was off like magic! finished it off with wfp.
Never thought cif would be stronger than virosol but there you have it , handy to have in your van 👍