400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (724) 776-4841 Fax: (724) 776-5760 SAE TECHNICAL PAPER SERIES 982674 Development and Introduction of Chrysler’s New Automatic Transmission Fluid Dennis W. Florkowski and Tracey E. King Chrysler Corporation Anthony P. Skrobul Texas Lubricants James L. Sumiejski Lubrizol Corporation Reprinted From: Automatic Transmission Fluids (ATF) (SP-1394) International Fall Fuels and Lubricants Meeting and Exposition San Francisco, California October 19-22, 1998Downloaded from SAE International by Birmingham City Univ, Monday, August 20, 2018The appearance of this ISSN code at the 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, that the copier pay a $7.00 per article copy fee through the Copyright Clearance Center, Inc. Operations Center, 222 Rosewood Drive, Danvers, MA 01923 for copying beyond that permitted by Sec- tions 107 or 108 of the 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. 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 0148-7191 Copyright 1998 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 USAAll SAE papers, standards, and selected books are abstracted and indexed in the Global Mobility DatabaseDownloaded from SAE International by Birmingham City Univ, Monday, August 20, 2018982674 Development and Introduction of Chrysler’s New Automatic Transmission Fluid Dennis W. Florkowski and Tracey E. King Chrysler Corporation Anthony P. Skrobul Texaco Lubricants James L. Sumiejski Lubrizol Corporation Copyright © 1998 Society of Automotive Engineers, Inc. ABSTRACT Chrysler began a limited development program directed toward a new automatic transmission fluid (ATF) early in1989 and launched a full time effort in 1994. Thedevelopment process for the new ATF involved asignificant level of bench testing and eventually vehicletests to evaluate the durability and shift quality of theATF. The bench tests included those that pertain tooxidation and shear stability, anti-wear, frictionalproperties and torque converter shudder. Vehicle testswere primarily extended durability in both internal vehiclefleets and at external taxi sites. The mileageaccumulated in this phase of the development programexceeded two million miles, all with no fluid drains out to100,000 miles. Additionally, shift feel tests wereconducted in Chrysler vehicles to verify compliance totargets. This paper summarizes the tests and resultsthat lead to the development of the new Chrysler fill-for-life automatic transmission fluid. INTRODUCTIONAfter evaluating the robustness of Chrysler’s current ATF, it became apparent