For the 2018 Jeep Wrangler with the 2.0L 4-cylinder Engine Code [N] EC3 N Turbo, the required oil capacity is 5 quarts (with filter). The recommended viscosity is 5W-30 for all temperatures. AMSOIL recommends using a synthetic motor oil such as Signature Series 5W-30 paired with an AMSOIL Oil Filter (EA15K50-EA) for optimal protection.
What oil does a 2018 Jeep Wrangler 2.0L take?
The 2018 Jeep Wrangler 2.0L 4-cylinder engine requires a synthetic motor oil with a viscosity of 5W-30 for all temperatures. The AMSOIL lookup notes that synthetic oil is required for this application. Using high-quality synthetic fluids helps manage the unique stresses placed on turbocharged small-displacement engines.
AMSOIL product recommendations
Based on the AMSOIL lookup for your 2018 Jeep Wrangler, here are the recommended fluids and filters to maintain engine health and performance.
Engine Oil Options
| Product Name | Viscosity | Code |
|---|---|---|
| AMSOIL Signature Series 100% Synthetic | 5W-30 | ASLQT-EA |
| AMSOIL Extended-Life 100% Synthetic | 5W-30 | XLFQT-EA |
| AMSOIL OE 100% Synthetic | 5W-30 | OEFQT-EA |
Oil Filter Options
| Product Name | Code |
|---|---|
| AMSOIL Oil Filter | EA15K50-EA |
| WIX Oil Filter | 57060-EA |
Other Essential Fluids
| Component | Product Name | Code |
|---|---|---|
| Coolant | Passenger Car & Light Truck Antifreeze | ANTPC1G-EA |
| Coolant | Propylene Glycol Antifreeze | ANT1G-EA |
| Transmission | Signature Series Fuel-Efficient ATF | ATLPK-EA |
| Transmission | OE Fuel-Efficient ATF | OTLQT-EA |
Engine Oil Specifications & Details
Oil Viscosity: 5W-30 (All TEMPS)
AMSOIL Lookup Oil Grade: SEO81
| Detail | Specification |
|---|---|
| Oil Capacity | 5 quarts (with filter) |
| Drain Plug Torque | 20 ft/lbs |
| Required Oil Type | Synthetic oil is required |
Note: After refilling, always check the oil level.
How much oil does it take with a filter change?
For a standard oil and filter service on the 2018 Jeep Wrangler 2.0L turbo engine, you will need approximately 5 quarts of 5W-30 synthetic motor oil. This capacity includes the volume held by a new oil filter. Always verify the level using the dipstick after the refill is complete.
Automatic Transmission Fluid (ATF) Specifications
This vehicle utilizes an 8-speed 850RE automatic transmission. Proper lubrication of the transmission is vital for smooth shifting and longevity, especially when subjected to heavy towing or off-road terrain.
| Component | Capacity (Total Fill) |
|---|---|
| 8-speed 850RE Transmission | 9 quarts |
For this application, the AMSOIL lookup lists Signature Series Fuel-Efficient ATF and OE Fuel-Efficient ATF.
Coolant System Capacities
Maintaining the cooling system is critical for turbo engines to prevent overheating. The capacities vary depending on specific configurations:
- Engine: 9.9 quarts
- ICOOL With MGU: 3.5 quarts
- ICOOL With O MGU: 3.2 quarts
- Battery: 2.5 quarts
AMSOIL offers Passenger Car & Light Truck Antifreeze (50/50 pre-mix) and Propylene Glycol Antifreeze (Concentrated).
Common diesel oil-related concerns and how AMSOIL products may help
While this is a gasoline turbo engine, owners of high-performance small-displacement engines often face similar lubrication challenges to diesel users, such as heat management and component protection.
| Concern | Why it matters | AMSOIL Product | How it may help | Limitation |
|---|---|---|---|---|
| Turbocharger Wear | High heat and speed can cause coking/wear. | Signature Series 5W-30 | Protects turbochargers 72% better than required by GM dexos1 Gen 2 spec. | Requires proper service intervals. |
| LSPI (Low Speed Pre-Ignition) | Can cause catastrophic engine damage. | Extended-Life 5W-30 | Specifically protects against LSPI. | Not a substitute for mechanical repair. |
| Engine Sludge | Deposits reduce oil flow and efficiency. | OE 5W-30 Synthetic | Fights sludge and deposits with synthetic formulation. | Depends on driving conditions. |
Diesel maintenance notes for this vehicle
Because the 2.0L engine is turbocharged, owners should focus on regular monitoring of turbocharger health, cooling system integrity, and fuel system cleanliness. Given the potential for varied use cases—from highway commuting to technical trail driving—preventative maintenance is essential to ensure longevity.
Common maintenance concerns for this vehicle
Based on owner reports and mechanical context, consider the following:
- Turbocharger Health: Monitor for any changes in boost or unusual noises.
- Cooling System Integrity: Ensure no leaks are present, as turbo engines are sensitive to heat.
- Steering and Suspension: NHTSA complaint data shows a high volume of reports regarding steering components in this model year. Regular inspections of tie rods and bushings are advised.
Recall, TSB, and manufacturer communication notes
NHTSA recall research for the 2018 Jeep Wrangler indicates several important communications:
- Seat Belt Buckle: A recall (Campaign 19V680000) was issued because driver’s seat belt buckle mounting straps may fracture.
- Track Bar Brackets: A recall (Campaign 18V675000) noted that front track bar brackets might be improperly welded, potentially reducing steering capability.
- Rear Underbody: A recall (Campaign 18V231000) addressed potential corrosion of the rear underbody ladder rail.
Disclaimer: Always verify open recalls by using your specific VIN through official Jeep/FCA channels or the NHTSA website.
About this vehicle
The 2018 model year represents a significant milestone for the Jeep Wrangler, marking the introduction of the fourth-generation ‘JL’ series. Unveiled at the 2017 Los Angeles Auto Show and entering production in late 2017, this generation was designed to modernize the iconic off-road platform while improving on-road comfort and safety compared to its predecessors, such as the JK and YJ generations. The JL maintains the traditional Jeep DNA, including a separate body and frame construction, rigid live axles both front and rear, and the ability to be driven with doors removed or a fold-flat windshield.
The 2.0L 4-cylinder turbo engine configuration reflects a broader industry shift toward balancing torque requirements for off-roading with modern fuel efficiency standards. This vehicle is typically utilized as a versatile daily driver that can transition into heavy-duty off-road use, making it subject to diverse mechanical stresses. Owners often research technical details regarding the ‘N’ engine code and its exact performance output through official manufacturer service manuals to ensure proper maintenance during high-load or technical trail driving.
Common questions about this vehicle’s diesel oil and maintenance
What is the oil capacity for my 2018 Jeep Wrangler 2.0L?
The capacity is 5 quarts when performing an oil change with a new filter installed.
Does my Jeep require synthetic oil?
Yes, the AMSOIL lookup notes that synthetic oil is required for this engine application.
How often should I change my oil?
AMSOIL Signature Series offers guaranteed protection for up to 25,000 miles or 1 year, while Extended-Life offers up to 20,000 miles under normal service conditions.
What torque spec should I use for the oil drain plug?
The oil drain plug should be torqued to 20 ft/lbs.
Can I use any coolant in my Jeep?
It is recommended to use a compatible formulation like AMSOIL Passenger Car & Light Truck Antifreeze, which is phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free.
How do I check for active recalls on my Wrangler?
You should contact a Jeep dealer or visit the NHTSA website and provide your unique Vehicle Identification Number (VIN) to check for any open safety recalls.
Verification Disclaimer: While this information is gathered from manufacturer and research data, always consult your owner’s manual or a certified professional before performing vehicle maintenance.