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SAE J306-1998 (R)Automotive Gear Lubricant Viscosity Classification
1. Scope-This SAE Standard defines the limits for a classification of automotive gear lubricants in rheological terms only. Other lubricant characteristics are not considered.
2. References
2.1 Applicable Publications-The following publications form a part of this specification to the extent specified herein. The latest issue of ASTM and CEC publications shall apply.
2.1.1 ASTM PUBLICATIONS-Available from ASTM,100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
ASTM D445-Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids(the Calculation of Dynamic Viscosity)
ASTM D2983-Standard Test Method for Low-Temperature Viscosity of Automotive Fluid Lubricants Measured by Brookfield Viscometer
ASTM D5293-Standard Test Method for Apparent Viscosity of Engine Oils Between-5 and-30C Using the Cold-Cranking Simulator
2.1.2 CEC TEST METHODS-Available from Coordinating European Council, Madou Plaza,25th Floor, Place Madou 1,B-1030 Brussels, Belgium
CEC Test Method CEC L-45-T-93-Viscosity Shear Stability of Transmission Lubricants(KRL-Tapered Roller Bearing Test Rig) Shear Stability Test,1993.
3. Definitions-This SAE Standard is intended for use by equipment manufacturers in defining and recommending automotive gear, axle, and manual transmission lubricants, for oil marketers in labeling such lubricants with respect to their viscosity, and for users in following their owner's manual recommendations. The SAE viscosity grades shown in Table 1 constitute a classification for automotive gear, axle, and manual transmission lubricants in rheological terms only.
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