As a driver of a white car I am unfortunately plagued by Tar Spots and Road and Traffic Film on my paintwork.
The product that I use and thoroughly recommend is ‘Holts – Tar and General Spot Remover.’ It costs about £5 and the results are excellent. However it is a little messy and reasonably time consuming. In basic terms I use it as follows :
1. Pre wash with the power hose.
2. Snow Foam.
3. 2 Bucket Wash.
4. Holts Tar and Spot Remover.
5. Power hose wash and rinse.
6. Another 2 Bucket wash (just to remove any remaining Holts – it is a bit messy).
7. Polish…Wax…Sealant etc…
Holts is really easy to use, simply spray it on the spots, you will notice they almost instantly get darker, wait about 3 minutes and wipe off with a clean cloth. Then give the car a quick clean and at the very least a good coat of polish to protect your newly gleaming paintwork!