Maxi Clean - Prewash Concentrate 1 Gal

An alkaline pre-wash for vehicles is a powerful, high-pH cleaning solution used before the main wash to dissolve and lift stubborn organic dirt, road grime, bugs, and oil, significantly reducing swirl marks by letting heavy contaminants rinse off without scrubbing, though it needs careful dilution and can strip wax/sealants, so it's great for heavily soiled cars or those with ceramic coatings but needs caution on delicate finishes.