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Re: 5.9 cummins engine life
Posted to HD/Fleet Forum on 6/29/2018 1 Reply

I work on these all the time. Valve adjust at 100,000. Regular oil changes, use full synthetic and generous with fuel filter service. With today’s fuel use an additive or a qt of ATF at fill up. Any extra lubrication is good to have. Did my apprenticeship with... Login to read more.

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