---
kind: "section"
citation: "40 C.F.R. § 1065.745"
title: "40"
number: "1065.745"
heading: "Coolants."
url: "https://uscodex.org/cfr/40/1065.745"
---

# §1065.745. Coolants.

- (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)](#a) and [(b)](#b) of this section, you may use rust inhibitors and additives required for lubricity, up to the levels that the additive manufacturer recommends.

## Notes

### Authority

Authority: 42 U.S.C. 7401-7671q.

### Source

Source: 70 FR 40516, July 13, 2005, unless otherwise noted.