How To Change Motor Oil In RAM 2500?

By Nick Marchenko, PhD

Updated: September 22, 2023

For maintaining the peak performance of your RAM 2500's engine, a regular oil change is essential. Oil plays a crucial role in lubricating, cooling, and ensuring the stable operation of all motor elements.

Without adequate oil, the engine will cease operation in about five minutes, leading to potential jams and malfunction. Although motor oil is essential, it deteriorates over time, losing its effectiveness.

Regular oil replacement is key to preventing any engine harm. The procedure is relatively straightforward, especially if you have a basic understanding of your RAM 2500’s structure. Most service stations can get the job done quicker than you can enjoy a cup of coffee! However, if you're looking to save some quid or fancy a bit of DIY, keep reading!

Key Takeaways:

• Consistent oil changes are critical for the optimal performance of the RAM 2500’s engine.
• The advised oil change interval for the RAM 2500 is between 5,000 to 12,000 miles, contingent on the oil type.
• Continued use of aged engine oil can introduce detrimental elements to the system, resulting in engine wear.
• Choosing the right oil, changing filters, and responsibly discarding used oil at specialized centers is essential during oil changes.

How often should you change the oil in RAM 2500?

For the majority of passenger vehicles, manufacturers recommend changing the engine oil every 10-15 thousand kilometers (6200 - 9300 miles). Regardless of the mileage, oil should be changed annually, especially if the RAM 2500 has been sitting idle.

Specific details on how frequently to change the oil in RAM 2500 can be found in the vehicle's service manual. The oil change frequency largely depends on how intensely the RAM 2500 is used.

Below are the general guidelines for RAM 2500 oil replacement intervals:

• Conventional oil - change interval - 5-7 thousand miles, or annually, whichever comes first;
• Synthetic lubricant - can last longer depending on its structure. Semi-synthetics should be replaced every 8-9 thousand miles, and full synthetics every 12 thousand miles. Keep an eye on the engine's performance and change the oil if any irregularities are observed;
• Alongside the oil, it’s advisable to replace all filters. The oil filter should be replaced with every oil change, while changing the air and fuel filters is optional but recommended.

Why is it important to change the engine oil in RAM 2500?

The oil interacts with all engine components, lubricating them and collecting impurities such as soot, metal shavings, and carbon deposits. Neglecting oil changes allows these contaminants to circulate through the system, causing internal engine damage.

Additionally, continuous exposure to high temperatures can degrade low-quality lubricants, diminishing their effectiveness. Consequently, the deteriorated oil may lead to issues like burrs, overheating, and seizing.

How to choose the proper oil for RAM 2500?

Choosing the right oil is crucial as it directly influences the engine’s performance. While all oils might seem similar, they vary in their characteristics and impacts.

Consider the following factors when selecting oil for your RAM 2500:

• Price: Opt for oil that suits your budget, but avoid overly cheap options to prevent potential counterfeits. Remember, skimping on oil could cost you more in the long run;
• Manufacturer: Renowned brands are less likely to be counterfeit. Ensure to purchase oil from certified sellers;
• Viscosity: This is a critical factor representing the oil’s flow resistance. Viscosity is denoted by values like 5W-30, 10W-40, etc., where the number preceding the "W" (Winter) represents the oil’s viscosity at low temperatures, and the succeeding number indicates the viscosity at 100°C. It’s vital to select a viscosity that aligns with the RAM 2500’s specifications and the regional climate.

API Classification. When you're dealing with a beast like the RAM 2500, it's imperative to know your oil's API Classification. The American Petroleum Institute (API) classifies oils based on their performance characteristics and the type of engine they’re intended for – gasoline or diesel in this case.

These classifications can be found on the oil can, designated as "SN", "SM", and "SL" for gasoline engines, or "CK-4", "CJ-4", and "CI-4" for diesel engines – particularly useful for the diverse engine options of the RAM 2500;

Additives. Different oils contain a variety of additives, performing a multitude of functions, essential for the heavy-duty demands of the RAM 2500:

• Detergent additives: Essential for keeping the engine clean;
• Dispersants: Work to prevent sludge formation;
• Antioxidants: Crucial for preventing oil oxidation;
• Anti-wear agents: Vital for protecting engine parts;
• Corrosion inhibitors: Important for preventing corrosion;
• Friction modifiers: Improve fuel efficiency, vital for the performance of the RAM 2500.

There are different types of oil: mineral, synthetic, or a mixture of both:

• Mineral oils: Refined directly from crude oil;
• Synthetic oils: Created through chemical processes offering better performance, especially crucial for the RAM 2500 dealing with extreme temperatures.

If you’re scratching your head over which oil is suitable for your RAM 2500, no problem; we’ve got you covered. You can view the list of recommendations here.

If you fancy choosing the oil yourself, we’ve got a detailed guide to help you pick the right oil for your powerful RAM 2500. Check it out here.

How to change the oil in RAM 2500?

Changing the motor oil in your RAM 2500 is straightforward, but there are a few key steps to ensure smooth operation and prevent any potential mishaps.

Time required: 30 minutes

Level of difficulty: 2/5

People needed: 1-2

Necessary equipment: 

• A set of wrenches or sockets;
• Rag(s);
• A key for unscrewing the filter or a belt;
• A container for draining used oil;
• A new oil suitable for RAM 2500;
• A new oil filter designed for RAM 2500

Preparation Setup

First things first, don the right gear! Grab your oldest pair of clothes – the ones you won’t mind getting a bit grubby. Oil can be tricky to wash off, so it’s better to be safe than sorry!

Next, consider where you’ll be performing the oil change. You need ample space underneath the RAM 2500 to work comfortably. Here are a few options:

• Drive the RAM 2500 onto a ramp or into a pit in the garage;
• Elevate your vehicle on a lift, jack it up, and secure it;
• Ensure the RAM 2500 is stable – safety first!;
• Avoid changing the oil immediately after a long trip. If the engine is hot, let the RAM 2500 cool down for at least 10–15 minutes to avoid any burns.

Locate and unscrew the oil cap on the engine

First off, unscrew the oil filler cap. This can usually be identified by an oil pan icon or the word “oil” on its surface. Place the oil cap on a clean cloth, and give it a good wipe to remove any oil and dirt.

Find the oil drain plug

Slide under your RAM 2500 in any way that’s comfortable for you. Locate the plug on the engine – it’s shaped like a nut and is situated on the engine tray. Now, place a container underneath this plug, ensuring it’s large enough to hold all the waste oil. A deep basin or bucket is your best bet!

Loosen the Oil Plug

Find the right wrench that perfectly fits the plug. Gently begin to turn it, ensuring you don’t strip the threads or damage the head, as this would cause you headaches down the road. If the plug is stubborn, consider using an impact wrench if you have one handy.

Prepare yourself as oil will gush out as soon as you remove the plug. Have your container ready and try to avoid any spillage.

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Allow the Oil to Drain

Be patient and let all the old oil drain out. Since you’ve already loosened the oil filler cap on the engine, this shouldn’t take too long. Examine the drained oil. Is it in good condition? Are there any metal shavings, debris, or other contaminants?

If you notice any such impurities, it could indicate potential engine issues, warranting a visit to a mechanic.

Reattach the Oil Plug

Clean the plug and its seat with a rag before reattaching it. A degreaser or WD-40 can be used for this. It’s a simple step but crucial to prevent the plug from sticking.

Be cautious about the tightening torque; too loose and it may leak, too tight and you might damage the threads. Consult the vehicle's owner’s manual for the correct specifications.

Remove the Oil Filter

Next, locate and unscrew the oil filter from the side of the engine block, turning it counterclockwise. If it's stuck, a leather belt can be used to gain leverage and turn it. Should this fail, a specialized oil filter wrench will be necessary.

Remember, some oil will still be in the filter, so have a rag ready for any spills.

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Install the New Oil Filter

Lubricate the new filter’s seal with some oil before installation. This small step ensures an easier replacement next time. It’s your choice to pre-fill the filter with oil or not. Ensure the filter is firmly in place to prevent any leaks.

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Pour in the New Motor Oil

Once you’ve secured the plug and the filter, it’s time to pour in the fresh oil. Refer to your vehicle’s specifications to know how much oil your RAM 2500 needs. Avoid overfilling as it can harm the engine.

Regularly check the oil level using a dipstick, aiming for a level between the min and max marks. Once done, secure the oil filler cap.

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Dispose of the Used Motor Oil Responsibly

After changing the oil, it’s essential to dispose of the old oil responsibly. Take it to a certified recycling center, contributing to environmental conservation.