Car pre-wash for stuck-on grime: AutoGrooming AutoGrooming Indigo Core
AutoGrooming AutoGrooming Indigo Core is an alkaline car pre-wash tested during a self-service car wash in Korea. At a 1:100 dilution, it cleared bonnet grime first, while trunk grime needed foam and a contact wash. Verdict: convenient measuring and clingy foam, but stubborn grime takes extra steps.












