SA E TECHNICAL PAPER SERIES Performance of Organic Acid Based Coolants in Heavy Duty Applications Debra A. Washington, David L. Miller, Phillip B. Valkovich, and Richard A. Armstrong Huntsman Corp. supported by Texaco Lubricants Co., N.A. F. Anne McMullen, Michael 9. Quinn, Frank A. Kelly, and Earl J. McWilliams Caterpillar Inc. Reprinted from: Engine Coolants and Cooling System Components (SP-1162) The Engineering Society =For Advancing Mobility -6and Sea Air and Space.. International Congress & Exposition Detroit, Michigan February 26-29,1996 -- -- 400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (41 2)776-4841 Fax:(412)776-5760 Downloaded from SAE International by University of New South Wales, Saturday, August 25, 2018The appearance of the ISSN code atthe bottom of this page indicates SAE's consent that copies of the paper may be made for personal or internal use of specific clients. This consent is given on the condition however, thatthe copier pay a $7.00 per article copy fee through the Copyright Clearance Center, Inc. Operations Center, 222 Rosewood Drive, Danvers, MA01 923for copying beyondthat permitted by Sections 107 or 108 of U.S. Copyright Law. This consent does not extend to other kinds of copying such as copying for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale. SAE routinely stocks printed papers for a period of three years following date of publication. Direct your orders to SAE Customer Sales and Satisfaction Department. Quantity reprint rates can be obtained from the Customer Sales and Satisfaction Department. To request permission to reprint a technical paper or permission to use copyrighted SAE publications in other works, contact the SAE Publications Group. GlOBAL MOBIUTY DATABASE All SAE paper's, standards, and selected books are abstracted and indexed in the Global Mobility Database. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. ISSN 01 48-71 91 Copyright 1996 Society of Automotive Engineers, Inc. Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by which discussions will be printed with the paper if it is published in SAE Transactions. For permission to publish this paper in full or in part, contact the SAE Publications Group. Persons wishing to submit papers to be considered for presentation or publication through SAE should send the manuscript or a 300 word abstract of a proposed manuscript to: Secretary, Engineering Meetings Board, SAE. Printed in USA 96-0049 Downloaded from SAE International by University of New South Wales, Saturday, August 25, 2018Performance of Organic Acid Based Coolants in Heavy Duty Applications Debra A. Washington, David L. Miller, Phillip B. Valkovich, and Richard A. Armstrong Huntsman Corp. supported by Texaco Lubricants Co., N.A. F. Anne McMullen, Michael J. Quinn, Frank A. Kelly, and Earl J. McWilliams Caterpillar Inc. Copyright 1996 Society of Automotive Engineers, Inc. ABSTRACT Coolant formulations based on organic acid corrosion inhibitor technology have been tested in over 180 heavy duty engines for a total of more than 50 million kilometers. This testing has been used to document long life coolant performance in various engne types from four major engine manufacturers. Inspections of engines using organic acid based coolant (with no supplemental coolant additive) for up to 610,000 kilometers showed excellent protection of metal engine components. Improved protection was observed against cylinder liner, water pump, and aluminum spacer deck corrosion. In addition, data accumulated from this testing were used to develop depletion rate curves for long life coolant c