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Engine Oil Viscosity Classification
- Ground Vehicle Standard
Published January 20, 2015 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This SAE Standard defines the limits for a classification of engine lubricating oils in rheological terms only. Other oil characteristics are not considered or included.
This revision continues the process of extending the SAE Engine Oil Viscosity Classification system to lower high-temperature high-shear-rate (HTHS) viscosities by adding two new high-temperature viscosity grades – SAE 12 and SAE 8 – to SAE J300 with minimum HTHS viscosities of 2.0 and 1.7 mPa•s respectively. The benefit of establishing new viscosity grades is to provide a framework for formulating lower HTHS engine oils in support of the ongoing quest of Original Equipment Manufacturers (OEMs) to improve fuel economy.
The 100°C kinematic viscosity (KV100) ranges of the new viscosity grades overlap to provide adequate formulating space for these grades. How to assign a single high-temperature viscosity grade to an engine oil with KV100 in the overlap regions is covered in Section 6 of this document.
|Ground Vehicle Standard||Automotive Gear Lubricant Viscosity Classification|
|Ground Vehicle Standard||Engine Oil Performance and Engine Service Classification (Other than "Energy Conserving")|
Data Sets - Support Documents
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|Table 1||SAE viscosity grades for engine oils|
|Table 2||Labeling examples|
Fuels and Lubricants TC 1 Engine Lubrication
The Fuels and Lubricants Council is responsible for: setting policy; providing final approval of documents; arbitrating controversial issues; reporting to the Technical Board (via the Technology/Development Group); approving the Technical Committee membership; and appointing Technical Committee, Coordinating Committee, and other Chairpersons as required. Participants in the SAE Fuels and Lubricants Council include OEMs, suppliers, consulting firms, government and other interested parties.
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