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Part record

6.7 Cummins Spec Engine Oil (CJ-4/CK-4 15W-40 case)

aggregated

Consumable. City-cycle trucks: shorten intervals (regen fuel dilution - fm-c67-oil-dilution). Spec grade resolves in catalog pass.

What this record does and doesn't claim

Spec-level record (no PN applies): capacity and grade are reference values - confirm against the owner manual for the specific VIN/climate.