Glossary “viscosity cup seconds” Definition:
Number of seconds paint should take to flow out of a viscosity cup, if thinned or reduced properly.

Glossary “viscosity grade” Definition:
Numerical rating of a fluid’s resistance to flow, as rated by SAE.

Glossary “viscosity index” Definition:
Number to indicate the change in viscosity of an oil when heated.

Glossary “viscosity index improvers (VI)” Definition:
Chemical compounds added to engine oil to help the oil resist thinning at high temperatures.

Glossary “viscosity rating” Definition:
Numerical indicator of the viscosity of an engine oil established by SAE.

Glossary “viscosity cup” Definition:
Device used to measure the thickness or fluidity of the mixed materials, usually paint. It is a small stainless steel cup attached to a handle.