As the name can suggest, Q²M APC (All Purpose Car Cleaner) can be used for various tasks such as wheel arch cleaning, engine bay degreasing, interior stain removal and many others. Its cleaning power depends on the chosen dilution for the job at hand. It can start from 1:5 for external applications up to 1:15 for interior cleaning. In extreme cases, like dirty wheel arches or engine bays, it might be used as a 1:1 dilution.