In BusinessSince 1987
AZ, CA, DE, FL, GA, ID, IA, IN, MA, MD, MI, MO, NC, ND, NE, NJ, NY, OH, OR, PA, TX, WI
Blended leak detection dye for all engine coolants, including extended-life coolants. GM-approved. Works with any fluorescent leak detection inspection lamp. Will not discolor the coolant, which could lead to misdiagnosis of engine problems.