Massey Ferguson E1378 – Engine ECU: Engine oil drain: delayed for too long

This is a maintenance reminder code indicating that the tractor has exceeded its programmed operating hours since the last engine oil service.

• 8600 series
• 8650
• 8660
• 8670
• 8680
• 8690
• 8400 series
• 8700 series

1. 1

   Verify the tractor's hour meter and maintenance log to confirm that an engine oil change is genuinely due (typically every 100–250 hours or annually).

2. 2

   Pull the engine dipstick to inspect the oil level and physical condition.

3. 3

   Scan for related codes to ensure there are no active sensor fault codes (such as oil pressure or temperature) that could indicate a hardware failure rather than a maintenance trigger.

1. 1

   Warm Up the Engine

   Run the tractor briefly to warm up the engine, which allows the old oil to flow and drain more easily.

2. 2

   Drain the Oil

   Shut off the engine, place a collection container under the oil pan, and remove the drain plug to empty the old engine oil.

3. 3

   Replace the Filter

   Remove the old engine oil filter and install a new OEM replacement filter.

4. 4

   Refill the Oil

   Reinstall the drain plug and fill the engine with new, high-quality diesel engine oil of the correct viscosity (commonly 10W-30 or 15W-40, meeting the manufacturer's API classification).

5. 5

   Check for Leaks

   Start the engine, let it run at a low idle, and check the filter and drain plug for leaks. Shut off the engine and verify the oil level on the dipstick.

6. 6

   Reset the Service Interval

   The fault code will remain active until the maintenance interval is reset. This can be done by navigating to the service maintenance interval screen on the tractor's onboard computer/dashboard (selecting the engine oil compartment and pressing the reset button) or by using a compatible diagnostic scan tool (such as Jaltest AGV) to perform a maintenance reset.