API PUBL 1560-1995

$39.00

Lubricant Service Designations for Automotive Manual Transmissions, Manual Transaxles, and Axles

Published By	Publication Date	Number of Pages
API	1995	12

Guaranteed Safe Checkout

Category: API

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document was prepared by the Lubricants Committee of the American Petroleum Institute to assist manufacturers and users of automotive equipment in the selection of transmission, transaxle, and axle lubricants for the operating conditions described.

In some axles, some transmissions, and some transaxles, gears of different designs are available for a variety of service conditions. Selecting a lubricant for specific applications involves careful consideration of the operating conditions and the chemical and physical characteristics of the lubricant. The American Petroleum Institute has released lubricant service designations for automotive manual transmissions, transaxles, and axles. Each designation refers to the performance required of a gear lubricant for a specific type of automotive service. These designations also recognize the possibility that lubricants may be developed for more than one service classification and may be so designated.

In developing the language for the service classifications, a need was recognized to supplement the descriptions for certain gear lubricants, particularly those for hypoid gears, by referring to a series of tests that would serve to provide more detailed information on the performance requirements of such lubricants. These series of tests were developed by Section B.03 of Subcommittee D02.B on Automotive Lubricants of the American Society for Testing and Materials (ASTM) Committee D-2, and reference is made to these test procedures in the API service designations described below.

Due to changes in manufacturers' recommended practices or due to the unavailability of testing hardware, the Service Designations API GL-2, GL-3, and GL-6 are not in current use. The designations listed in Section 3 replace all previous API gear lubricant designations.

Note: Automatic or semiautomatic transmission, fluid couplings, torque converters, and tractor hydraulic systems usually require special lubricants. Consult the manufacturer or lubricant supplier for the proper lubricant.