subpart_subject: "Engine Fluids, Test Fuels, Analytical Gases and Other Calibration Standards"
section_number: "1065.745"
section_subject: "Coolants."
cfr_reference: "40 CFR 1065.745"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Part 1060 to End"
revised_date: "Revised as of July 1, 2019"
publication_date: "As of July 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
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(a)You may use commercially available antifreeze mixtures or other coolants that will be used in your engine in use.
(b)For laboratory testing of liquid-cooled engines, you may use water with or without rust inhibitors.
(c)For coolants allowed in paragraphs (a) and (b) of this section, you may use rust inhibitors and additives required for lubricity, up to the levels that the additive manufacturer recommends.