Designed to extend life operation, Shell Rotella ELC Nitrite Free Pre-Diluted 50/50 Antifreeze/Coolant is an ethylene glycol-based coolant that contains Shell Rotella ELC OAT technology for extended life up to 1,200,000 miles in Class 8 over the road operation. It is recommended for use in diesel, gasoline, and natural gas engine powered vehicles along with light duty passenger cars and pick-up trucks with proper maintenance. The OAT technology also promotes excellent heat transfer to help keep heavily used engines cool during the summer. Shell Rotella ELC NF is formulated to provide protection against freezing at low temperatures and boil-over at high temperatures and/or severe operating conditions at proper dilutions. The nitrite free formulation provides improved protection of aluminum components in modern engines including brazed aluminum heat exchangers and meets many of the newest OEM specifications. For a full listing of equipment approvals and recommendations, please consult your local Shell Technical Helpdesk.