• valvoline hd nitrite free coolant

Valvoline HD Nitrite Free coolant is engineered to protect all cooling systems using OAT coolants. The Valvoline™ patented coolant technology provides superior protection against liner pitting and hard water scale deposits. 

Although it is designed for heavy-duty engines, Valvoline Heavy Duty Nitrite Free Coolant has an extra-wide application and secures extended hours of service.

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