
Base-Oil Costs Are Rising Again—and Group III Is Still the Constraint
Crude is back above $100, diesel has surged, and key 4 and 6 cSt Group III grades remain extremely difficult to source.

Crude is back above $100, diesel has surged, and key 4 and 6 cSt Group III grades remain extremely difficult to source.

Crude is back above $100, diesel has surged, and key 4 and 6 cSt Group III grades remain extremely difficult to source.
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