2017 Isuzu NPR Oil Capacity & Filter Guide

The 2017 Isuzu NPR takes 6.0 quarts (5.7 liters) of oil for the 6.0L V8 gasoline engine, while the 5.2L turbo-diesel requires a massive 14.8 quarts (14.0 liters) with a filter change. Keeping the lifeblood of your commercial work truck fresh is critical to ensuring it stays on the road making money. Below is the comprehensive guide to servicing the oil on your 2017 Isuzu NPR, whether you have the gas or diesel powerplant.

Quick Answer

Here is the essential information you need for the most common 2017 Isuzu NPR setup (6.0L Gas V8):

• Oil Capacity: 6.0 quarts (5.7 L) with filter
• Recommended Weight: 5W-30 (Gas) / 15W-40 (Diesel)
• Oil Specification: API SP / GM dexos1 Gen3 (Gas) or API CK-4 / CJ-4 Heavy Duty (Diesel)
• OEM Oil Filter (Gas): AC Delco PF48E (GM 19303975)
• Aftermarket Oil Filters (Gas): Fram PH10060, Wix 57060, Mobil 1 M1-113A
• OEM Oil Filter (5.2L Diesel): Isuzu 8-98328-680-0
• Aftermarket Oil Filters (5.2L Diesel): Wix 57203, Fram PH10959

Capacity by Engine Option

The 2017 Isuzu NPR platform utilizes either a GM-sourced gasoline V8 or Isuzu's in-house turbo-diesel engines. Always verify your engine before buying oil, as the capacity gap between the gas and diesel models is significant.

Oil Change Interval

Commercial trucks work hard, so sticking to the correct interval is vital.

Gasoline (6.0L V8):

• Normal Duty: 7,500 miles or 12 months.
• Severe Duty (Towing, idling, stop-and-go delivery): 4,000 miles or 6 months.

Diesel (3.0L / 5.2L):

• Normal Duty: 10,000 miles, 300 engine hours, or 12 months.
• Severe Duty: 5,000 miles, 150 engine hours, or 6 months. Note: Many fleets prefer to track diesel maintenance by engine hours due to high idle times.

Drain Plug Torque

• 6.0L V8 Gas: 18 ft-lbs (25 Nm).
• 5.2L / 3.0L Diesel: 30 ft-lbs (40 Nm). Always inspect the drain plug gasket or crush washer. Isuzu diesel pans typically use a copper or aluminum crush washer. Replace it at every interval to prevent weeping leaks.

How to Change the Oil

1. Warm up the engine: Run the truck for a few minutes to get the oil warm (but not scalding). This helps suspend contaminants and allows the oil to drain faster.
2. Locate the drain plug: Position your drain pan. Warning for diesel owners: Ensure your catch pan can hold at least 4 gallons!
3. Drain the oil: Remove the drain plug and let the oil drain completely.
4. Replace the filter: Remove the old oil filter. Clean the engine mating surface. Lubricate the new filter's rubber O-ring with a dab of fresh oil, and spin it on hand-tight (usually 3/4 to 1 full turn after the gasket makes contact).
5. Reinstall drain plug: Install a new crush washer and torque the plug to spec (18 ft-lbs for gas, 30 ft-lbs for diesel).
6. Fill and check: Pour in the required amount of oil. Start the engine, let it idle for 30 seconds to fill the filter, shut it off, and wait a few minutes. Check the dipstick and top off as needed.

Common Issues / Tips

• High Idle Times: Delivery trucks idle a lot. If your NPR is a delivery vehicle, go by engine hours or severe duty mileage for oil changes. Extended idling degrades oil quickly, especially in the 6.0L gas engines.
• Diesel Particulate Filter (DPF) Health: Using the wrong oil in the diesel engines can destroy your DPF. You must use a low-ash oil rated API CJ-4 or CK-4.
• Filter Access: The diesel oil filter is large and holds a substantial amount of oil. Loosen it slowly and have rags ready to catch the spill before completely unscrewing it.
• Grease Points: Don't forget that the NPR chassis has multiple grease zerks on the steering linkage, kingpins, and driveline. An oil change is the perfect time to lubricate the chassis.

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