Gunk

Gunk is one of the oldest names in automotive degreasers — the brand has been on hardware-store and auto-parts shelves since 1932. The product line emphasizes traditional petroleum-solvent-based chemistry built for tradespeople who want fast, aggressive cleaning rather than gentle, eco-friendly formulations. The original Engine Brite degreaser (EB1) is a category landmark with three-quarters of a century of mechanic recognition behind it. The brand is owned by Blaster LLC (Valley View, Ohio), a family-owned chemicals company that also markets the B'laster line of penetrating oils and rust treatments. Many Gunk SKUs ship in two formulas — a "regular" national-market formula and a "CA" CARB-compliant low-VOC variant for California — which is a reliable signal that the original formula's VOC profile would not pass California's consumer-product emissions thresholds. Buyers should check the SKU code: EB1 is the original, EB1CA is the California-compliant reformulation.