multigrade
adjective
mul·ti·grade
| \ ˌməl-tē-ˈgrād
, -ˌtī-\
, -ˌtī-\
Definition of multigrade
1
: including or involving students from more than one grade level
a multigrade classroom
2
of motor oil
: having a viscosity range that allows use over a wide temperature range
Due to the need for an oil that embodies both good lubrication at high temperatures and easy cranking in cold weather, multigrade oils have been developed. Basically, a multigrade oil is thinner at low temperatures and thicker at high temperatures.— Kevin M. G. Maher et al.
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