Curious about your 2015 Ram Ecodiesel’s engine oil capacity? We’ve got you covered if you’re looking for how to do an oil change on your 2015 Ram Ecodiesel.

Written by Elaine Yang

Reviewed by Melanie Reiff

Updated on Dec 24, 2022

Table of Contents

2015 Ram Ecodiesel engine oil capacity
How often to change oil on a 2015 Ram Ecodiesel
Don’t forget regular insurance policy maintenance

As a capable, versatile, and top contender in the full-size pickup truck market, the 2015 Ram Ecodiesel is a great choice. If you want to keep up with its maintenance and ensure peak performance, you’re going to need to know its engine oil capacity.

If you’ve ever owned a car before, you know that vehicle maintenance can be a pain—and expensive as well. That’s why so many people choose to do small maintenance checks, like oil changes, themselves. However, before you get your tools out, read through your owner’s manual so you’re taking the right steps and using the right materials.

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2015 Ram Ecodiesel engine oil capacity

The first step to an oil change is figuring out how much engine oil your 2015 Ram Ecodiesel needs.

A 2015 Ram Ecodiesel’s engine has an oil capacity of 10.6 quarts or 10 liters. Don’t confuse this with your engine’s displacement—which is 3 liters. Whereas engine displacement denotes the space your Ram’s cylinders take up, its oil capacity tells you how much oil you need for an oil change.

What kind of oil does a 2015 Ram Ecodiesel need?

When you’re looking into an oil change for your 2015 Ram Ecodiesel, make sure that you’re buying the right grade replacement. Don’t just grab any bottle of engine oil off the shelves of your local hardware store—a 2015 Ram Ecodiesel generally requires 5W-20 motor oil.

This grade is designed to work well in colder winter climates—as noted by the 5W marking, which means that the oil retains good viscosity at 0 degrees Fahrenheit.

Ram recommends that its drivers use synthetic oil rather than conventional oil in oil changes, as it works best with its engine, and will lengthen the time in between oil changes.

For your 2015 Ram Ecodiesel, here oil recommendations based on your engine size:

3.6L Engine: MOPAR® SAE 5W-20 engine oil

5.7L Engine: MOPAR SAE 5W-20 engine oil or equivalent Pennzoil® or Shell Helix®

6.4L Engine: Pennzoil Ultra 0W–40 engine or equivalent MOPAR oil

MORE:

Can you add oil to a hot engine?

How often to change oil on a 2015 Ram Ecodiesel

Now that you’ve got a couple of options to choose from, you’re going to need to know how often you should be

changing your Ecodiesel’s oil

Ram recommends that you should be changing your oil every 10,000 miles. However, this might differ depending on whether you’re using conventional or synthetic oil. Since synthetic oil can run for longer, if you’re using conventional oil, be prepared for an oil change earlier.

Just in case, you should be checking your engine oil level at least every other month, preferably once a month. If you’re experiencing any of these signs, it might just be time for an oil change:

Strange noises

coming from the engine

New smells, especially anything that smells like oil, smoke, or burning

Performance changes

MORE:

The most common Ram problems

How to change your oil and oil filter

Once you know you need an oil change, you’re gonna need a socket wrench, a drain pan, and a filter wrench that can remove the old oil filter. Before starting, make sure you’ve bought the new oil filter and replacement engine oil.

The first step is to run your engine for at least five minutes. This ensures that your vehicle is at its normal operating temperature. Once your engine has been running for a bit, shut it off, and follow these steps:

Find and remove your oil fill cap

Get underneath the engine and remove the oil drain bolt and washer, draining the old oil into the drain pan

Remove the old

oil filter

and let the oil drain

Replace the old filter with the new filter

Remove the oil drain bolt and use a new washer and tighten it to 29 lb-ft

Refill the engine with your new oil and replace the fill cap

You can use your dipstick to indicate when you’ve added enough new oil. Once you’re done, run the engine again, and check for any leaks. If you’ve followed the steps correctly, the

oil pressure light

should turn off.

The final step is to clean up any oil that has spilled. Gather it into a container, and bring it to your local recycling center.

After changing your oil, it’s a good idea to turn on your car and let your engine run for about 30 seconds before you check the oil level. This will give you a more accurate measurement, and you’ll be able to top it off if necessary.

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