Assertion: high vi fluid | /r/CapableOf | help maintain near-optimum viscosity
Facets:
value: over a wider temperature range
type: OTHER
Source sentences:
text: But when conditions are not constant—such as in mobile equipment that must operate from winter cold to desert heat—and loads, speeds and temperatures vary, many OEMs recommend high-VI fluids that help maintain near-optimum viscosity over a wider temperature range.