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Tannas Co. & King Refrigeration, Inc. Precision Laboratory Instruments for Routine Testing and Advanced Research & Development of Engine Oils, Lubricants, and Related Fluids


As members of the Savant Group, Tannas Co. and King Refrigeration help advance lubricant technology through our innovative and reliable instruments.  The collective contributions of the Savant Group have produced over 250 technical publications world-wide and over 40 U.S. patents for lubricant test methods and high-precision test instruments.
A few of our patented instruments and techniques include:

  • TBS® Viscometer  |  High Temperature, High Shear (HTHS) Tapered Bearing Simulator 

  • SBT® | Scanning Brookfield Technique

  • TEOST® | Thermo-oxidation Engine Oil Simulation Test

  • Quantum® Oxidation Tester

  • SimAir® Test Cells for ASTM D2983

TEOST Overhead shot

An overhead view of the TEOST® 33C test setup. 

SimAir 3.jpg

Patented SimAir® Test Cells, shown here in the BLB Test Cell Carousel, utilize a unique insulating chamber between two glass walls.