PACCAR Engines | Engine Oil Specifications

PACCAR Engines

PACCAR diesel engines powering Kenworth and Peterbilt trucks. Oil specifications, API CK-4 requirements, and drain intervals for MX-series platforms.

Engine Pages


12.9L

MX-13

API CK-4. 15W-40. No FA-4.

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10.8L

MX-11

API CK-4. 15W-40. No FA-4.

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CK-4 vs FA-4OEM drain intervalsBest oil for semi trucks

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