Prestone Command Heavy-Duty Extended Life Antifreeze/Coolant provides CAT EC-1 protection for any diesel-powered heavy-duty engine with resistance to temperature extremes, rust, corrosion, scale and water-pump failure.
- 600,000-mile/12,000-hour service life
- Premium, long-lasting inhibitors
- Protection for aluminum and all other engine metals
- Compatibility with any heavy-duty antifreeze/coolant
- Prediluted 50/50 formulation for convenient top-offs