Features and Benefits:

• Positive proof that a leak is present when the tester fluid changes color
• Gasoline engine: tester fluid changes from blue to yellow
• Diesel engine: tester fluid changes from blue to green
• Works on: Gasoline and Diesel engines!
• 16 oz./480 ml

Gasoline Engine: Tester Fluid changes from blue to yellow. Diesel Engine: Tester Fluid changes from blue to green Works on: Gasoline and Diesel engines! 16 oz./480 ml