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Ram TSB #0901323
2021 Ram 4500
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- 6.7L New Oil Usage Information Incorrect oil used. This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2023 to 2013 HD Trucks. The following information is intended to eliminate confusion.
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