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Re: Cummins CES 20086
Posted to Castrol Forum on 6/8/2023 2 Replies

Look up Cummins Quickserve Bulletin 5411406. It's a "global" guide to oil specs. In short, CES 20086 is "recommended" for engines with aftertreatment systems, while CES 20081 is "permitted".

They want low ash/metal formulations of the newer oil to extend lif... Login to read more.

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