Gunk EBT32 Engine Cleaner and Degreaser - 32 oz. GUNK is a local family owned company based out of Charlotte, NC. For more than 75 years, GUNK products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation. Zero-VOC formula is safe for use on all metals and plastics under the hood Formulated to tackle the toughest dirt, grease and oil the road can throw at it Readily biodegradable