The OTR Antifreeze / Coolant Concentrate - 275 Gallon is formulated to protect engine components from rust and corrosion. It is designed to maintain optimal engine temperature, even under extreme conditions. This concentrate is suitable for use in a variety of heavy duty diesel engines, offering comprehensive protection against scale and deposits. It provides reliable cold weather protection, effectively preventing freezing issues. This multifaceted protection ensures engine longevity and performance during diverse operational conditions.