2020 International LT Oil Capacity & Filter Reference

The 2020 International LT with the Cummins X15 engine takes 16 U.S. gallons (60.6 liters) of engine oil.

Quick Answer

• Oil Capacity: 16 U.S. Gallons (60.6 Liters)
• Recommended Oil Weight: 15W-40 (conventional or synthetic blend for most climates); 10W-30 (for temperatures consistently below 0°F / -18°C)
• Oil Type Specification: API CK-4 / CES (Cummins Engine Standard) 20086
• OEM Oil Filter Part Number: Cummins 4367100 (or consult dealer with VIN)
• Aftermarket Oil Filter Cross-References:
  • Fleetguard: LF14000NN
  • Wix: 57777XP
  • Donaldson: P551040

Capacity by Engine Option

The 2020 International LT largely features the Cummins X15 engine. Below is the oil capacity for this engine.

Oil Change Interval

The oil change interval for your 2020 International LT with the Cummins X15 engine can vary significantly based on duty cycle, average speed, fuel consumption, and oil analysis results. Always refer to your owner's manual for the most accurate and up-to-date recommendations, or consult your fleet maintenance schedule.

• Normal Duty: Typically 30,000 to 50,000 miles (48,000 to 80,000 km) or 600-800 operating hours. This applies to trucks primarily engaged in long-haul, on-highway operations under consistent conditions.
• Severe Duty: 15,000 to 30,000 miles (24,000 to 48,000 km) or 250-400 operating hours. This includes applications involving excessive idling, stop-and-go driving, heavy loads, dusty environments, or frequent short trips.

Note: Many fleets utilize oil analysis programs to extend drain intervals safely. Oil analysis can detect contaminants, fuel dilution, and wear metals, allowing for optimized oil change schedules.

Drain Plug Torque

For the 2020 International LT with the Cummins X15 engine, the oil pan drain plug torque specification is typically 59 lb-ft (80 Nm). Always confirm this specification with the service manual for your specific truck. It's advisable to replace the drain plug gasket or O-ring (if equipped) with a new one during each oil change to ensure a proper seal and prevent leaks.

How to Change the Oil

Changing the oil in a heavy-duty truck like the International LT requires appropriate equipment and safety precautions. If you are not experienced, it is best to have a qualified technician perform this service.

1. Warm Up Engine: Run the engine to bring the oil to operating temperature, ensuring it drains more easily.
2. Park Safely: Park the truck on a level surface, engage the parking brake, and chock the wheels.
3. Locate Drain Plug: Place a large drain pan (capable of holding at least 20 gallons) beneath the oil pan drain plug.
4. Drain Oil: Carefully remove the drain plug and allow all the old oil to drain completely. Inspect the old oil for any abnormalities.
5. Replace Filter(s): Remove the old oil filter(s) using an appropriate wrench. Apply a thin film of new oil to the gasket of the new filter(s) before spinning them on until snug, then tighten according to filter manufacturer specifications (usually an additional 3/4 to 1 turn).
6. Reinstall Drain Plug: Install the new drain plug gasket/O-ring and reinstall the drain plug, tightening it to the specified torque.
7. Refill Oil: Remove the oil fill cap and add the recommended amount and type of new engine oil. Use a funnel to prevent spills.
8. Check Level: Start the engine and let it run for a few minutes to circulate the oil. Shut off the engine, wait a few minutes for the oil to settle, then check the oil level with the dipstick. Add more oil if necessary to reach the "full" mark.
9. Inspect for Leaks: Visually inspect around the drain plug and oil filter(s) for any leaks.

Common Issues / Tips for the International LT (Cummins X15)

• Dosing Unit Filter: The Cummins X15 engine has an engine-mounted fuel filter that also acts as a dosing unit filter. Ensure this is replaced according to the manufacturer's schedule as it affects the SCR system's performance.
• Oil Sampling: For fleets, regular oil sampling is highly recommended to predict maintenance needs, extend drain intervals, and monitor engine health.
• Fuel Dilution: Be vigilant for signs of fuel dilution in the engine oil, which can be identified via oil analysis and may indicate injector issues or DPF regeneration problems.
• Breather Filters: Check the crankcase breather filters and tubes for cleanliness and proper function during oil changes; a clogged breather can lead to increased crankcase pressure.

Need an oil change? Find a trusted shop on Repairius.