There are many different kinds of diesel engines out there, but few are as sought after as those created by International Truck and Engine Corporation, also known as Navistar. If you own a truck, bus, or other vehicle with a DT530 or HT530 engine, you can rest assured that the engine is reliable and long-lasting. Of course, part of that longevity is owed to maintenance, which is up to you to perform. Let’s discuss what you need to know about the DT/HT530, including the oil capacity and how to change the oil.

What is the International DT/HT530?

The International DT530 and HT530 engines were produced by International Truck and Engine Corporation during the late 1990s and early 2000s. Both iterations are 7.6-liter, six-cylinder, in-line diesel engines. The DT/HT 530 engine was primarily used in medium-duty and heavy-duty trucks, buses, and other commercial vehicles. You may also find these engine in dump trucks, garbage trucks, and utility trucks. Power output typically ranged from around 230 horsepower to 330 horsepower, while torque output varied accordingly.

One of the main features of the DT530 and HT530 engines was the advanced fuel injection system, which provided efficient fuel delivery and optimized combustion for improved performance and fuel economy. Furthermore, the HT530 was equipped with turbocharging technology, increasing the power output and improving its overall performance.

The DT and HT530 were eventually replaced by the DT/HT570.

What is the Oil Capacity of the International DT530 Engine?

The oil capacity of the International DT530 and HT530 engines typically ranges between 19 to 21 quarts (approximately 18 to 20 liters), including the oil filter. This oil capacity may vary slightly depending on the specific engine configuration (DT vs HT) and application.

The 19 to 21 quarts (18 to 20 liters) of oil are typically changed every 10,000 to 15,000 miles or 6 to 12 months, depending on operating conditions. For vehicles operating in severe conditions such as frequent towing, heavy hauling, or stop-and-go driving, more frequent oil changes may be necessary.

How Do You Change the Oil in the International DT/HT530?

Now that you know how much oil goes into an International DT530 or HT530 engine, it’s time to learn exactly how to change the oil. The process is relatively straightforward, but you will want to make sure you are prepared by gathering the following items:

  • Engine oil (typically 15W40)
  • Oil filter (must be compatible with DT530)
  • Oil drain pan
  • Wrench or socket set
  • Oil filter wrench
  • Funnel
  • Rags or shop towels

Steps to Changing DT/HT530 Oil

The first thing to do before changing the oil is to ensure that your vehicle is parked on a level surface. If you have been running it, let the engine cool for 5-10 minutes. Working around hot oil can be dangerous. Once you are ready, follow the steps below:

  1. Position a container to catch the old oil beneath the engine’s oil pan.
  2. Using a wrench or socket set, loosen the oil drain plug located on the bottom of the oil pan.
  3. Carefully remove the oil drain plug and allow the old oil to drain completely into the drain pan. Wipe the drain plug clean.
  4. Locate the oil filter, typically mounted on the engine block. 
  5. Using an oil filter wrench, carefully loosen and remove the old oil filter. Some oil may leak from the old filter.
  6. Before installing your new filter, dab some clean oil onto the rubber gasket.
  7. Screw the new oil filter onto the engine block by hand. Once it contacts the mounting surface, tighten it per the manufacturer’s specifications.
  8. Using a funnel, pour the recommended amount of new engine oil into the engine through the oil filler cap.
  9. After adding oil, start the engine, letting it run for a few minutes. Listen for any unusual sounds. Once a couple minutes have passed, turn off the engine and let it cool.
  10. Use the engine’s dipstick to check that the oil level is within the recommended range. If it is, you are good to go. Top off if not.

Final Thoughts on International DT Oil Change and Capacity

Maintaining proper oil change intervals and ensuring the correct oil capacity are essential aspects of diesel engine maintenance, particularly for International DT series engines. Regular oil changes help to preserve engine performance, longevity, and reliability by providing adequate lubrication and preventing the buildup of contaminants. By routinely changing the oil, you ensure that your DT530 or HT530 will continue to run for many years to come.

Categories: Oil Guides


Hi, I’m Alastair. Welcome to, a website for the best oil recommendations for your vehicle, whether it is a two-door sports car, SUV, hatchback, or tractor. Having grown up on a family farm and working as an engineer, I became interested in just about anything with an engine. I also found that motor oil, despite being essential for internal combustion engines, is overlooked, underestimated, or just misunderstood. There may come a day when motor oil is obsolete as electric vehicles become more and more popular. But until then, you are going to need to know the best type of motor oil for your vehicle. That is why I was inspired to create this website. aims to be the internet’s destination for everything related to motor oil, including news, comparisons, features, and recommendations for vehicles by make and model. All the information you need to keep your treasured vehicles running clean is right here. In particular, I am also obsessed with the upkeep of vehicles in general. That is why you will also find troubleshooting tips for removing oil filters and drain plugs, for example. Consider it the mission of to provide accurate information, as well as insight for automotive professionals and enthusiasts.


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