The latest member of the Chevron Delo brand family is Extended Life Coolant/Antifreeze – Nitrite Free (DELO ELC-NF). It’s recommended for use in on- and off-road heavy-duty equipment, as well as stationary applications, requiring a nitrite-free OAT formulation, as mandated by engine manufactures like Detroit Diesel. In 2006, Detroit Diesel published DDC 93K217, which only allows the use of nitrite-free extended-life coolants (OAT) in its engines.

The new coolant offers a service life of 600,000 miles, 12,000 hours or six years with no chemical extender needed, says Chevron. Other benefits are said to include: excellent corrosion protection and lower electrical conductivity; protection against pitting, corrosion and erosion even on hard-to-protect metals like aluminum; and improved water pump life due to its silicate-free formula. DELO ELC-NF is 100% compatible with DELO ELC which contains nitrite. Like other extended-life coolants in the Delo line the new nitrite-free ELC product is said to be dilution-tolerant up to 25%.

The new Delo Nitrite Free coolant is available in pails, drums and bulk, and will soon be offered in gallon jugs.

There’s also a new Texaco product from Chevron, known as Texaco Extended Life Coolant/Antifreeze – Nitrite Free, which offers identical performance characteristics to the new Delo product.