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Re: API CI-4
Posted to HD/Fleet Forum on 5/26/2003 1 Reply

Although CI-4 is what is specified for the new EGR equiped diesels, it is superseding oil rated CH-4 and older. Some of the oils that have already been updated are:

Conventional Lubricants:

Penzoil Long-Life 10W-30, 15W40

Shell Rotella-T 15W40

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