2018 Ram 3500 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Ram 3500 and How to Address Them Effectively

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 2018 Ram 3500 is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 Ram 3500 is leaking oil?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the steps to diagnose the oil leak in a 2018 Ram 3500?

To effectively diagnose an oil leak in your 2018 Ram 3500, start by thoroughly inspecting the engine bay and the area beneath the vehicle for any visible signs of oil, such as stains or puddles. This initial step helps you locate the source of the leak. Next, check the oil level using the dipstick; a significant drop in oil level can indicate a leak that needs immediate attention. Pay close attention to the gaskets and seals around critical components like the oil pan and valve cover, as these are common culprits for leaks. Additionally, inspect the oil filter for any signs of damage or leakage, and ensure that the oil drain plug is securely tightened to prevent any oil from escaping. If the source of the leak remains elusive, consider performing a pressure test, which can help pinpoint the exact location of the issue. Should you find yourself unable to identify or resolve the leak, seeking the expertise of a mechanic is a wise choice to ensure proper diagnosis and repair. By following these steps, you can effectively tackle the problem and maintain the health of your vehicle.

What are the common causes of oil leaks in a 2018 Ram 3500?

When dealing with oil leaks in a 2018 Ram 3500, it's essential to understand the common culprits that may be at play. One frequent issue is a worn or damaged oil pan gasket, which can deteriorate over time, leading to leaks. Similarly, a faulty valve cover gasket can allow oil to seep out, creating noticeable stains under the vehicle. Another potential source of leaks is the oil filter; if it is loose or damaged, it can result in oil escaping from the engine. Additionally, the oil cooler lines may degrade, causing leaks that can go unnoticed until they become significant. It's also important to check for damaged oil seals, such as the crankshaft or camshaft seals, as these can wear out and lead to oil leaks. Lastly, a loose or damaged drain plug can be a simple yet often overlooked cause of oil leakage. Addressing these issues promptly is crucial to maintaining your vehicle's performance and preventing further engine damage. Regular inspections and maintenance can help you catch these problems early, ensuring your Ram 3500 runs smoothly.

How urgent is it to address the oil leak in my 2018 Ram 3500?

Addressing an oil leak in your 2018 Ram 3500 is not just a matter of routine maintenance; it is a critical safety concern that demands immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in inadequate lubrication. This can increase friction among engine parts, potentially causing severe damage and costly repairs. Moreover, an oil leak poses a fire hazard, especially if the oil comes into contact with hot engine surfaces, creating a dangerous situation that could endanger both you and your vehicle. Ignoring the leak can exacerbate the problem, leading to more extensive damage over time, which may culminate in engine failure. Therefore, it is essential to act swiftly to repair the leak, ensuring the safe and efficient operation of your Ram 3500 while preventing further complications down the road.

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