2014 Isuzu NQR Oil Capacity & Filter Guide

The 2014 Isuzu NQR takes 8.5 quarts (8.0 liters) of 5W-30 engine oil.

Quick Answer

• Oil Capacity: 8.5 quarts (8.0 liters)
• Recommended Oil Weight: 5W-30
• Oil Specification: API CJ-4 or higher (for vehicles equipped with Diesel Particulate Filter - DPF)
• OEM Oil Filter Part Number: 8-98075677-0
• Aftermarket Oil Filter Cross-References:
  • Fram: CH10705
  • Wix: 57077
  • Mobil 1: M1C-251

Capacity by Engine Option

All 2014 Isuzu NQR models typically come equipped with the 5.2L 4HK1-TC diesel engine. Therefore, the oil capacity remains consistent across the NQR lineup for this model year.

Oil Change Interval

The oil change interval for your 2014 Isuzu NQR is crucial for engine longevity, especially for commercial vehicles.

• Normal Duty: Isuzu generally recommends oil changes every 10,000 miles or 12 months, whichever comes first.
• Severe Duty: For vehicles operating under severe conditions (e.g., frequent short trips, sustained idling, towing heavy loads, extreme temperatures, dusty environments), the oil change interval should be shortened to 5,000 miles or 6 months.

Always refer to your vehicle's owner's manual for the most accurate and up-to-date maintenance schedule.

Drain Plug Torque

Properly torquing the drain plug prevents leaks and damage to the oil pan.

• Drain Plug Torque: 33-36 lb-ft (45-49 Nm)

It is highly recommended to replace the crush washer (gasket) on the drain plug every time you perform an oil change to ensure a complete seal and prevent leaks. Consult your Isuzu dealer for the correct replacement crush washer part number.

How to Change the Oil

Changing the oil on your 2014 Isuzu NQR is a straightforward process if you have the right tools and follow these steps:

1. Warm up the engine: Drive the vehicle for a few minutes to bring the oil to operating temperature, making it flow more easily.
2. Park on a level surface: Ensure the vehicle is safely chocked and the parking brake is engaged.
3. Locate drain plug and oil filter: Position an oil drain pan underneath the drain plug located on the bottom of the oil pan.
4. Drain the old oil: Carefully remove the drain plug (use a wrench that fits snugly) and allow all the old oil to drain completely. Inspect the old crush washer.
5. Replace drain plug: Install a new crush washer on the drain plug and tighten it to the specified torque (33-36 lb-ft).
6. Remove old oil filter: Use an oil filter wrench to remove the old oil filter. Be prepared for some residual oil to spill.
7. Prepare new oil filter: Apply a thin film of new oil to the rubber gasket of the new oil filter.
8. Install new oil filter: Thread the new oil filter onto the engine by hand until it makes contact with the mounting surface, then tighten an additional 3/4 to 1 full turn (or according to filter manufacturer's instructions).
9. Add new oil: Locate the oil filler cap on the top of the engine. Using a funnel, slowly add 8.5 quarts of fresh 5W-30 API CJ-4 (or higher) engine oil.
10. Check for leaks and level: Start the engine and let it run for a few minutes to circulate the new oil. Turn off the engine, wait a few minutes, and then check the oil level on the dipstick. Top off if necessary. Inspect for any leaks around the drain plug and oil filter.
11. Reset maintenance light: If applicable, reset the oil life monitor according to your owner's manual.

Common Issues / Tips for this Generation (2008-2020 N-Series)

• DPF System Sensitivity: The 5.2L 4HK1-TC engine in this generation NQR is equipped with a Diesel Particulate Filter (DPF). Using the correct API CJ-4 (or newer, if compatible and suitable for DPF) low-ash oil is paramount. Using incorrect oil can lead to premature DPF clogging and costly repairs.
• Regular Fuel Filter Replacement: While not directly oil-related, maintaining a clean fuel system is vital for the optimal operation of modern diesel engines and their emissions systems, including the DPF.
• Cooling System Maintenance: Overheating can severely impact engine oil life and overall engine health. Ensure the cooling system is properly maintained with regular coolant flushes and inspections of hoses and belts.
• Turbocharger Care: Allow the engine to idle for a minute or two after heavy driving before shutting it off. This allows the turbocharger to cool down and prevents oil coking in the turbo bearings, extending its life.

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