Paint on vinyl

Any ideas on removing this and not damaging the siding? Interior latex paint. Its been here for a couple years.

I use this if any overspray gets on the house when I’m staining with acrylic.

Try a test spot first.

If it’s been watered-down, it’ll be tougher to get out. And it looks like it might be in some areas.

That’s slow work so charge accordingly.