Gunk’s Lead Substitute allows older engines designed for use with “leaded” gasolines to run safely with low lead or unleaded fuels when used as directed. Replaces lead protection, contains valve seat anti-wear additive, intended for off-road use. Treats up to 20 gallons of gasoline.
- Allows engines designed for leaded gasoline to run safely with low lead or unleaded fuels
- Prevents valve damage and upper cylinder wear in older engines
- Coats with a protective film designed to prevent valve recession
- Intended for off-road use
- Replaces lead protection