Thorough clean

[Humpy D]

Just washed my car for the first time since the recent snow and ice and although it's come up nicely there are quite a few marks on the car (the bonnet especially) which look a bit like sap marks when you've parked under a tree. As I've not parked under any trees it can't be this? Could the gritting salt have caused them?

Anyhow, how do I get rid of them? I washed the car with Zymol which normally gets rid of everything else but it didn't touch these.

Any ideas?

[Envy Valeting]

I would suggest claying, followed by a paint cleanser should sort you out.

[caduceus]

Yup, McGuiars clay bar system should sort it out. Hard work, but work it. Velvety smooth paintwork afterwards.

[TheDetailDoctor]

Bilt Hamber auto Clay is the one you want, will not marr the paint.