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Savant Labs
A World of Lubrication Understanding®

Viscosity and Shear Stability

Savant Labs offer test methods for viscosity and shear stability testing. We understand the need for the industry to further evaluate the fuel-efficient benefits of engine oils in different operating conditions within an engine.  Using the High-Temperature, High Shear Tapered Bearing Simulator Viscometer (HTHS-TBS), Savant Labs have the ability to measure viscosities from 40ºC to as high as 200ºC in addition to the standard HTHS testing at 100ºC and 150ºC.  Savant's expertise allows us to measure viscosity at customized shear rates from 1x105 s-1 to 7x105 s-1. With the experience and knowledge of the equipment manufacturer, Tannas Company, a sister company of Savant Labs, we have skills and experience beyond most testing labs in the industry. 

Savant Labs’ Founder, Ted Selby, has written numerous technical articles related to viscosity and shear stability which can be found in our technical paper library.

Our expert chemists and technicians have also written overview articles related to viscosity and shear stability listed below.

Shear Stability and Viscosity Loss Overview
Viscosity Loss - It's Only Temporary

If you would like to discuss shear stability options or learn more about the testing capabilities available at Savant Labs, please contact us.

ASTM International Method
ASTM D97 Pour Point
ASTM D445 Kinematic Viscosity, 0°C and Above
ASTM D445 Kinematic Viscosity, 40°C or 100°C
ASTM D445 Kinematic Viscosity, Below 0°C
ASTM D1084 B T-Bar Viscosity of Adhesives
ASTM D1092 Apparent Viscosity, Grease
ASTM D2270 Viscosity Index
ASTM D2532 Viscosity Stability at Low Temperature
ASTM D2603 Sonic Shear
ASTM D2983 Brookfield Viscosity, +20°C to -60°C
ASTM D3829 Mini-Rotary Viscosity (MRV)
ASTM D4287 High-Shear Viscosity Using a Cone/Plate Viscometer
ASTM D4683 High Temperature High Shear/TBS Viscosity, 150°C
ASTM D4683 Mod. High Temperature High Shear/TBS Viscosity, < 50°C
ASTM D4683 Mod. High Temperature High Shear/TBS Viscosity, Multi-Temperature/Shear
ASTM D4684 TP-1 MRV Viscosity, Single Temperature
ASTM D5133 Scanning Brookfield Viscosity (-5°C to -40°C)
ASTM D5133 Scanning Brookfield Viscosity, Extended Temp. Range
ASTM D5275 Fuel Injector Shear Stability (FISST), 20 Passes
ASTM D5275 Fuel Injector Shear Stability (FISST), 30 Passes
ASTM D5275 Fuel Injector Shear Stability (FISST), 40 Passes
ASTM D5275 Fuel Injector Shear Stability (FISST), Other
ASTM D5293 Cold Cranking Simulator, Single Temperature
ASTM D5293 Mod. Cold Cranking Simulator, Temperature Scan
ASTM D5621 Sonic Shear, Hydraulic Fluids
ASTM D6278 Kurt Orbahn Shear Stability
ASTM D6616 High Temperature High Shear/TBS Viscosity, 100°C
ASTM D7109 Kurt Orbahn Shear Stability - 30 and 90 Passes
CEC L-036-90 Mod. High Temperature High Shear Viscosity, 150°C
CEC L-45-99 Mod. KRL Shear
CEC L-45-99 Mod. KRL Shear + pre & post shear VI
FTM 203C Stable Pour Point
SAVLAB CAP Cone and Plate Viscosity
SAVLAB FEI Fuel Efficiency Index (FEI)
SAVLAB GES GE Package 1, B82-1
SAVLAB TBR High Temperature Low Shear/TBR Viscosity
SAVLAB VLP Viscosity Loss Profile (VLP), 20 Passes
SAVLAB VLP Viscosity Loss Profile (VLP), 30 Passes
SAVLAB VLP Viscosity Loss Profile (VLP), 40 Passes