Oil & Fuel System Maintenance Did you know that performing engine lubrication, & fuel system maintenance at the same time without starting the engine in between system services is a bad idea? THE RISK OF SEQUENTIAL OIL & FUEL FILTER CHANGES: On diesel engines it can sometimes take time and extended cranking for the fuel system to prime. During this cranking period, if the systems were serviced sequentially, the engine can be experiencing unnecessary wear and damage due to inadequate oil pressure. This is due to the oil system having to re-prime after an oil change. It is highly recommended that the engine is restarted after the oil and filter have been replaced, allowing the oil system to re-prime. After the oil system is re-primed, then you can shut the engine down and perform the fuel TECH TIPS: If you have just changed the oil and filter, you must start the engine and confirmproper oil pressure before changing the fuel filters. If no oil pressure is shown after approximately 10 seconds, stop the engine and determine the cause. Running the engine with no oil pressure could result in engine damage. Start the engine with the accelerator pedal in the idle position. Monitor the oil pressure gage or indicator lamp. Keep the engine running at idling speed until the oil pressure is 97 kPa (14 PSI) or more. filter change, then prime the fuel system. Here is a Note from the Operators Manual:
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DD5 — DD8 — DD13 — DD15 — DD16 Series 50 — Series 60 — MBE 900 — MBE 4000
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