Reported in a unit-less number, this test gives you an idea of how an oil’s viscosity changes between 40°C and 100°C.
Viscosity Index
$38.00
Description
Based on ASTM D2270, this test produces a unit-less number and gives you an idea of how an oil’s viscosity changes between 40°C and 100°C.
Straight weight oils have a viscosity index around 95. Multi-grade oils have a higher viscosity index, and synthetic oils will be even higher still. Synthetic oils are often known as VHVI (Very High Viscosity Index) oils.
Minimum amount of oil required: 50 ml (one full sample bottle)
