Heavy-duty industrial strength truck and bus wash. Super-foaming, grease-cutting cleaner and degreaser. Removes soap film, bugs, tar, grease and more. Use with tunnel washers, pressure washers or by hand. Suds will break rapidly during rinse cycle to leave a sparkling and streak-free shine. Will not dull finishes. pH 11.0 Use dilution: 4 oz/gal.