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Re: Extended Life Coolant Testing/Replacement
Posted to HD/Fleet Forum on 1/11/2022 1 Reply

Cummins CES 14603 standard is their basic standard for heavy duty coolant. This is probably the rating that you want/need. Cummins had some problems with ELC coolant and gasket/seal elastomers back about when your engine was built.

The following Cummins appr... Login to read more.

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