2022 Jeep Gladiator 3.0L Diesel Maintenance Guide: Oil, Filters & Fluids

AMSOIL diesel oil guide for 2022 Jeep Gladiator
AMSOIL diesel oil guide for trucks, vans, SUVs and diesel engines

For the 2022 Jeep Gladiator equipped with the 3.0L 6-cylinder Diesel Turbo (Engine Code M), the engine oil capacity is 9 quarts with a filter change. The recommended viscosity for all temperatures is 5W-40. AMSOIL recommends using AMSOIL 5W-40 FS 100% Synthetic European Motor Oil (EFMQT-EA) paired with a WIX Oil Filter (WL10614-EA) for optimal protection.

What oil does a 2022 Jeep Gladiator 3.0L Diesel take?

The 2022 Jeep Gladiator with the 3.0L 6-cylinder Engine Code [M] requires an oil viscosity of 5W-40 for all temperatures. The AMSOIL lookup specifies an oil grade of SEO50. For this application, the AMSOIL lookup lists AMSOIL 5W-40 FS 100% Synthetic European Motor Oil.

AMSOIL product recommendations

Based on the AMSOIL lookup data, here are the recommended fluids and filters for your 2022 Jeep Gladiator 3.0L Diesel.

Engine Oil & Filter

Product Name Code
AMSOIL 5W-40 FS 100% Synthetic European Motor Oil EFMQT-EA
WIX Oil Filter WL10614-EA

Transmission & Transfer Case

Product Name Code
AMSOIL Signature Series Fuel-Efficient 100% Synthetic ATF ATLPK-EA
AMSOIL OE Fuel-Efficient 100% Synthetic ATF OTLQT-EA
AMSOIL Signature Series Multi-Vehicle 100% Synthetic ATF (Transfer Case) ATFPK-EA
AMSOIL OE Multi-Vehicle 100% Synthetic ATF (Transfer Case) OTFQT-EA

Coolant & Brake Fluid

Product Name Code
AMSOIL Passenger Car & Light Truck Antifreeze & Coolant ANTPC1G-EA
AMSOIL Propylene Glycol Antifreeze and Engine Coolant ANT1G-EA
AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid BFLVCN-EA

Engine Oil Specifications

Property Specification
Viscosity 5W-40 (All TEMPS)
AMSOIL Lookup Oil Grade SEO50

How much oil does it take with a filter change?

The total capacity for the 3.0L diesel engine is 9 quarts when replacing the oil filter. It is important to check the oil level after refilling. The torque specification for the oil drain plug is 33 ft/lbs.

Engine Oil and Filter Details

Proper lubrication is critical for turbo-diesel engines to prevent sludge and ensure longevity. Using a high-quality synthetic oil designed for European diesel applications can provide exceptional engine protection without harming emissions systems.

Oil Filter Information

The AMSOIL lookup recommends the WIX Oil Filter (Part Number: WL10614-EA). This premium media filter is designed to help reduce engine wear and offers OEM drain intervals.

Transmission and Transfer Case Specifications

The 2022 Jeep Gladiator uses an 8-speed automatic transmission (8HP75). Maintaining correct fluid levels and quality is essential for smooth shifting and component longevity, especially during heavy towing.

Automatic Transmission Fluid (ATF)

Component Capacity
8-speed 8HP75 Total Fill 9.5 quarts

For this application, the AMSOIL lookup lists Signature Series Fuel-Efficient 100% Synthetic ATF and OE Fuel-Efficient 100% Synthetic ATF.

Transfer Case Lubricant

For the transfer case (MP3022C….AP4), the capacity is 3.8 pints. You should fill the transfer case to the bottom edge of the fill plug opening. The torque for both the fill plug and drain plug is 21 ft/lbs.

Diesel maintenance notes for this vehicle

  • Fuel Filtration: Diesel engines require strict adherence to fuel filtration standards to protect high-pressure components.
  • Coolant Management: The cooling system capacity is 14.5 quarts. Using a compatible OAT or propylene glycol formulation is necessary to protect metals and gaskets.
  • Brake System: The AMSOIL lookup notes that MOPAR DOT 3 Brake Fluid (SAE J1703) should be used; if unavailable, DOT 4 is acceptable.

Common diesel oil-related concerns and how AMSOIL products may help

Concern Why it matters AMSOIL product How it may help Limitation
Turbocharger Protection High heat and speed can cause oil breakdown. EFMQT-EA Provides exceptional protection for diesel engines. Requires regular oil changes.
Heavy Towing/Heat Increased stress on transmission fluids. ATLPK-EA Withstands rigors of heavy towing and elevated temperatures. Diagnosis required for mechanical failure.
Diesel Injector Deposits Can lead to poor performance or stalling. Diesel Additives May help maintain injector cleanliness. Not a repair for failed pumps.

Common maintenance concerns for this vehicle

Based on owner reports and research, owners of the 2022 Jeep Gladiator should be aware of several areas:

  • Fuel System: Some owners have reported issues regarding high-pressure fuel pump (HPFP) reliability.
  • Electrical/Communication: Reports exist concerning control modules losing communication via the Can Bus connection.
  • Suspension: There are documented owner complaints regarding “death wobble” symptoms.
  • Lighting: Some reports indicate failures of the third brake light assembly.

Recall, TSB, and manufacturer communication notes

NHTSA research indicates several important recalls for the 2022 Jeep Gladiator:

  • Fuel System: A recall (Campaign 22V767000) exists for 3.0L diesel engines regarding potential high-pressure fuel pump (HPFP) failure which may cause engine stall.
  • Transmission: A recall (Campaign 22V639000) was issued for the automatic transmission parking mechanism.
  • Seat Belts: A recall (Campaign 22V766000) involves front seat belt pretensioners.

Note: Always verify open recalls by checking your specific VIN through official Stellantis or NHTSA channels.

About this vehicle

The 2022 Jeep Gladiator represents a modern revival of the classic Gladiator nameplate, originally used for full-size pickups between 1962 and 1988. The current JT generation is a mid-size pickup built on the same platform as the Jeep Wrangler JL, blending off-road heritage with utility-focused cargo capabilities.

This specific model features the 3.0L 6-cylinder diesel engine. Diesel variants in this class are typically utilized for increased torque and improved towing efficiency compared to gasoline counterparts, making them attractive for owners who require a balance of off-road prowess and hauling utility. Because it is part of Jeep’s modern lineup, owners should expect advanced electronic systems alongside rugged mechanical components. Maintenance context for these vehicles often focuses on fuel filtration, diesel exhaust fluid (DEF) management, and specialized oil specifications required to prevent sludge in turbo-diesel engines.

Common questions about this vehicle’s diesel oil and maintenance

What is the engine oil capacity for my 2022 Gladiator Diesel?

The capacity is 9 quarts including the filter replacement. Always check the level after refilling.

What viscosity should I use for the 3.0L diesel?

The AMSOIL lookup recommends a 5W-40 viscosity for all temperatures.

How often should I change my transmission fluid?

While specific intervals vary by use, AMSOIL products like ATLPK-EA are designed to withstand heavy towing and challenging terrain.

Can I use any antifreeze in my Jeep?

The AMSOIL lookup lists ANTPC1G-EA as a compatible option, noting it is phosphate-, nitrate-, nitrite-, silicate-, borate-, and amine-free.

What should I do if my fuel pump is recalled?

If your vehicle is part of the HPFP recall (Campaign 22V767000), contact a dealer to have the component replaced free of charge.

Does AMSOIL help with diesel injector maintenance?

AMSOIL offers various diesel additives that are designed to support fuel system cleanliness and performance.

Disclaimer: All technical service specifications should be verified against the owner’s manual or official Stellantis service guides before performing any service.

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