Patented ‘direct refrigeration’ technology, determines borderline pumping temperatures of lubricants without use of chiller baths or thermoelectric cooling. Meets ASTM D3829, D4684, D6821. Required test for SAE J300 Viscosity Classification; ILSAC GF series Specifications; API SL, SM; ASTMD4485; JPI 5S-42-04; Chinese Standard GB-11121; and OEM factory fill.
