Tracerline HBFTP3900 Dye-Lite® Water-Based Engine Coolant & Auto Body Leak Check Dyes, 6-Pack, 1 oz.

• Universal leak detection dye for all engine coolants, including extended-life coolants
• GM-approved
• Works with any leak detection lamp
• Will not discolor the coolant, which could lead to misdiagnosis of engine problems