Already have some various remedies trying for easy removal of insect residues and have become happy with the product from Sonax. The application is quite simple: spray on, wait two to three minutes, and finished abkärchern. For extremely stubborn dirt flies, repeat applications. I sprinkle next to slices, headlights, mirror caps and paint just about anything that is contaminated with insect debris. Negative effects on the paint etc. I could not tell.
Unfortunately the product is not very cheap, but the result speaks for itself, so 5 stars.
