2018 Jeep Cherokee oil capacity and type are critical details for any owner looking to maintain their vehicle’s performance and longevity. Understanding these specifics ensures your SUV continues to run smoothly, efficiently, and reliably for years to come. Proper lubrication is the lifeblood of your engine, protecting its intricate components from wear and tear, dissipating heat, and keeping it clean from harmful deposits. For the popular 2018 Jeep Cherokee, knowing exactly what kind of oil to use and how much is essential for routine maintenance, whether you’re a DIY enthusiast or simply want to be informed when taking your vehicle to a service center.
Understanding Your 2018 Jeep Cherokee Engine Options
The 2018 Jeep Cherokee was offered with a couple of robust engine options, each designed to deliver different levels of performance and fuel efficiency. The oil requirements, including capacity and specific type, vary significantly between these engines. It’s crucial to identify which engine powers your particular Cherokee model before proceeding with any oil maintenance.
The two primary engine options for the 2018 Jeep Cherokee were:
2.4L Tigershark MultiAir 2 I4 Engine: This four-cylinder engine is known for its balance of power and efficiency, often found in front-wheel-drive or entry-level 4×4 models.
3.2L Pentastar V6 Engine: A more powerful option, the V6 offers increased towing capacity and stronger acceleration, commonly paired with all-wheel-drive systems.
Always consult your vehicle’s owner’s manual to confirm your specific engine type, as this is the most accurate source of information for your particular vehicle.
2018 Jeep Cherokee Oil Capacity by Engine
Getting the oil capacity right is just as important as using the correct type. Too little oil can lead to insufficient lubrication and potential engine damage, while too much can cause aeration, foaming, and increased pressure, which can also be detrimental.
Here’s a breakdown of the typical oil capacities for the 2018 Jeep Cherokee’s engine options:
For the 2.4L Tigershark MultiAir 2 I4 Engine:
Capacity: Approximately 5.0 US Quarts (4.7 Liters) with a new oil filter.
It’s always recommended to add slightly less than the full capacity, then check the dipstick, and gradually add more if needed until the level is within the safe operating range.
For the 3.2L Pentastar V6 Engine:
Capacity: Approximately 5.9 US Quarts (5.6 Liters) with a new oil filter.
Similar to the 4-cylinder, it’s a good practice to underfill slightly and then top up gradually while checking the dipstick.
These capacities are general guidelines. Always verify the exact measurement in your owner’s manual. The capacity includes the oil held within the oil filter, so ensure you replace the filter with every oil change.
Recommended Oil Type for Your 2018 Jeep Cherokee
Using the correct oil type is paramount for the health and longevity of your 2018 Jeep Cherokee’s engine. Modern engines are designed with specific oil viscosities and formulations in mind. Deviating from these recommendations can lead to reduced performance, increased wear, and potentially costly repairs.
For the 2.4L Tigershark MultiAir 2 I4 Engine:
Viscosity: SAE 0W-20 Full Synthetic engine oil.
Certification: Look for oil that meets Chrysler Material Standard MS-6395. It should also carry an API certification mark (e.g., API SN, API SP).
This specific viscosity ensures proper lubrication during cold starts and maintains adequate film strength at operating temperatures, which is critical for the MultiAir system.
For the 3.2L Pentastar V6 Engine:
Viscosity: SAE 5W-20 Full Synthetic engine oil.
Certification: Again, ensure the oil meets Chrysler Material Standard MS-6395 and has the appropriate API certification (e.g., API SN, API SP).
The 5W-20 viscosity is optimized for the Pentastar V6 to provide efficient lubrication and maintain fuel economy.
Why Full Synthetic?
Both engines generally specify full synthetic oil. Synthetic oils offer superior protection compared to conventional oils, especially in extreme temperatures. They are more resistant to breakdown, offer better flow in cold weather, and provide enhanced cleaning properties, leading to longer engine life and extended drain intervals. While they might cost a bit more upfront, the benefits in engine protection and potential fuel economy often outweigh the extra expense.
Why the Right Oil Matters So Much
Engine oil does far more than just lubricate moving parts. It performs several vital functions that contribute to your engine’s overall health and efficiency:
Lubrication: This is its primary role, reducing friction between metal components like pistons, crankshafts, and camshafts. This minimizes wear and prevents overheating.
Cooling: Oil helps to draw heat away from hot engine parts, transferring it to the oil pan where it can dissipate.
Cleaning: It carries away contaminants, sludge, and microscopic metal particles, suspending them until they can be trapped by the oil filter.
Sealing: Oil forms a seal between the piston rings and cylinder walls, which helps maintain proper compression and prevents combustion gases from escaping into the crankcase.
Corrosion Protection: Additives in engine oil help to prevent rust and corrosion on internal engine components.
Fuel Efficiency: The correct viscosity reduces internal friction, contributing to better fuel economy.
Ignoring these specifications can lead to accelerated engine wear, sludge buildup, reduced fuel efficiency, and eventually, expensive mechanical failures.
When to Change Your Oil
Modern vehicles, including the 2018 Jeep Cherokee, often come with an Oil Change Indicator System (OCIS) that monitors driving conditions and engine performance to determine the optimal oil change interval. While the OCIS is a valuable tool, general guidelines suggest:
For synthetic oil: Typically every 7,500 to 10,000 miles or every 6 to 12 months, whichever comes first.
Consult your Owner’s Manual: Always defer to your vehicle’s owner’s manual for the most accurate and personalized maintenance schedule. It will outline conditions that might require more frequent changes, such as heavy towing, extreme temperatures, or frequent short trips.
Oil Change Indicator System: Pay attention to your Cherokee’s oil change light. When it illuminates, it’s time for a service.
Checking Your Oil Level: A Quick Guide
Even with proper maintenance, it’s a good idea to periodically check your oil level between changes.
1. Park on Level Ground: Ensure your vehicle is parked on a flat surface to get an accurate reading.
2. Warm Engine, Then Rest: Drive the vehicle until the engine reaches operating temperature, then turn it off and wait about 5-10 minutes to allow the oil to drain back into the oil pan.
3. Locate Dipstick: Find the engine oil dipstick (usually with a yellow or orange handle).
4. Clean and Reinsert: Pull the dipstick out, wipe it clean with a rag or paper towel, then reinsert it fully.
5. Read Level: Pull the dipstick out again and check the oil level. It should be between the “MIN” and “MAX” marks.
6. Top Off if Needed: If the level is low, add small amounts of the correct oil type, checking the dipstick each time, until it reaches the appropriate range. Avoid overfilling.
Choosing the Right Oil Filter
Along with the correct oil, a high-quality oil filter is crucial. The filter removes contaminants from the oil, preventing them from circulating through the engine. Always choose an oil filter that meets or exceeds the original equipment (OEM) specifications for your 2018 Jeep Cherokee. Reputable brands offer filters designed for specific engine requirements, ensuring proper filtration and oil flow.
Conclusion
Maintaining your 2018 Jeep Cherokee involves understanding its specific needs, and knowing the correct 2018 Jeep Cherokee oil capacity and type is a fundamental part of that. By adhering to the recommended synthetic oil viscosity, meeting Chrysler’s material standards (MS-6395), and ensuring the correct oil capacity for your engine (5.0 quarts for the 2.4L and 5.9 quarts for the 3.2L), you are actively protecting your investment. Regular oil changes with the right products not only ensure optimal engine performance and fuel efficiency but also significantly extend the lifespan of your reliable Jeep Cherokee, keeping you confidently on the road for many adventures to come.
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Source:
2018 Jeep Cherokee Owner’s Manual