removing grime from paintwork

[DIYedboy]

Being a lazy *ugger I wash my car twice a year. Now that I want to sell it, I've washed it, but the roof and bootlid have some sort of a grime layer over the silver paintwork and fairy liquid won't shift it. Any ideas what might?

 

[nickso]

clay bar

 

[Pickup]

Panel wipe,

buy it from a motor factor it's what a body shop uses to clear all the wax and stuff off. (It also shines up a plastic bath really good if you want to impress your girlfriend / wife / mother)

 

[diydazzler]

Take it to a bodyshop or valeters and get them to run a mop over t