There is some road paint under the fender, any way to remove it? Heres a pic. Thanks in advance!

 

I'd try prepsol or 3M general adhesive remover first. Put some on an old MF towel or rag and scrub that area pretty hard. If it's not doing anything, you can always try something stronger like paint thinner.

Rubbing compound will definitely do the trick also, but it can leave the fender liner looking faded and may need to be followed by a milder polish to restore gloss to the plastic.

I'd definitely try to chemically remove it first and not mechanically with an abrasive polish though. Good luck.

 

Is a pigmented resin system, very high in solids with a colour aggregate and is more like an adhesive than paint; it contains silica (glass) micro beads that help reflect light, however they can cause scratches if you use mechanical removal.

Correction / Removal - use 3M Adhesive Remover and detailer’s clay or a plastic razor blade, 3M Eraser Wheel Detailer’s Clay or try wet-sanding with 2000 - 2500 grit finishing paper and a Unigrit block.

For heavy accumulations or paint that has dried for several days on the vehicles paint surface, apply a liberal coating of Vaseline to the dried traffic paint and allow to remain overnight and then pressure wash. This should remove most of the traffic paint. If not, repeat the procedure.
Road Paint Remover (wipes) – TOTL; Lay the smooth side of the wipe over the contamination to saturate the surface. Let it sit for about one minute to soften the paint. Use the textured side of a new wipe and rub vigorously. Use firm pressure and a lot of action. Particularly difficult cases may take a second application.

Once you have removed the road paint, wash off the chemical with shampoo and a spot polish should bring back the original shine. (Do not use on paint that is less than 90 days old) The same technique can be used for old tar removal.