Compatible with any OAT extended life heavy duty antifreeze in any diesel-powered commercial vehicle engine Protects against temperature extremes, rust, corrosion, scale, and premature water pump failure Premium long-lasting inhibitors provide up to 600,000 miles / 12,000 hours of protection Protects aluminum and all other engine metals No dilution necessary, 50/50 formula is convenient for top-offs; contains 30-50 ppm of denatonium benzoate as a bittering agent
