All methoxy propanol base engine coolants, when installed in accordance with the vehicle manufacturer's recommendations and those on the product label, shall function effectively in a properly maintained cooling system in heavy equipment, trucks or buses:

1. (1) with or without diesel engines;
2. (2) under normal service;
3. (3) during both winter and summer;
4. (4) for a minimum of one year without adversely affecting fluid flow and heat transfer; and
5. (5) providing protection against freezing, boiling and corrosion in accordance with all other specifications of 02 NCAC 09F .0300.

History Note: Authority G.S. 106‑579.7; 106‑579.14;
Eff. February 1, 1982;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. March 22, 2015.