The 2022 Jeep Gladiator with the 3.6-liter Pentastar V6 engine is a capable off-road vehicle that demands reliable lubrication to handle both rugged trails and daily highway commuting. Proper fluid selection ensures that the engine operates efficiently, the transmission shifts smoothly, and the drivetrain remains protected under heavy loads. This guide outlines the specific AMSOIL products recommended for the Gladiator’s various fluid compartments, helping owners maximize performance and longevity.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-20 100% Synthetic Motor Oil – The top choice for ultimate engine protection, offering up to 25,000 miles of service in normal service conditions.
- AMSOIL Extended-Life 0W-20 100% Synthetic Motor Oil – An ideal alternative for drivers seeking 20,000-mile protection intervals with high cleaning power.
- AMSOIL OE 0W-20 100% Synthetic Motor Oil – A cost-effective full synthetic option designed to outperform conventional oils and meet GM dexos1 Gen 2 specifications.
- AMSOIL 0W-20 100% Synthetic High-Mileage Motor Oil – Formulated specifically for engines with over 75,000 miles to reduce leaks and sludge.
- AMSOIL Oil Filter – Provides 99% filtration efficiency at 20 microns and offers greater capacity for wear-causing contaminants than standard filters.
- WIX Oil Filter – A premium alternative with superior media that improves upon OEM-branded filters for effective contaminant removal.
- AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – Designed to withstand heavy towing and elevated temperatures while maintaining fluidity in sub-zero conditions.
- AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid – A value-focused synthetic fluid that protects against wear and ensures smooth, shudder-free shifts.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mixed, phosphate-free formulation offering up to 150,000 miles of corrosion protection.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated option that can be mixed with water for heavy-duty protection up to 150,000 miles or 5 years.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Delivers excellent ABS and traction-control responsiveness with a stable viscosity across a wide temperature range.
- AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube – Provides advanced wear protection for front and rear differentials, including limited-slip and electronic locker applications.
- AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid – Helps seals remain soft to prevent leaks and resists heat for extended fluid life in vehicles with electric power steering systems.
- AMSOIL P.i.® Performance Improver Gasoline Additive – Restores GDI fuel injectors to 100% flow rate and can recover up to 14% of lost horsepower.
Ensuring the 2022 Jeep Gladiator operates with the correct lubricants is critical for maintaining its structural integrity and performance capabilities. The 3.6L Pentastar V6 engine is designed for a specific viscosity grade, and using the wrong fluid can lead to reduced fuel economy, excessive wear, and potential mechanical failure. By adhering to the recommended 0W-20 viscosity, owners can ensure optimal cold-start protection and proper lubrication at operating temperatures. The following sections detail the specific requirements for the engine, transmission, cooling system, and drivetrain components.
Engine Oil and Filtration
The heart of the 2022 Jeep Gladiator is the 3.6-liter V6 engine. For this specific engine code [G] ERC G, the manufacturer recommends 0W-20 viscosity motor oil for all temperatures. The total oil capacity, including the filter, is 5.0 quarts. After refilling, it is essential to check the oil level to ensure it is within the proper range. The oil drain plug should be torqued to 20 ft/lbs to prevent leaks or thread damage.
AMSOIL offers four distinct motor oil choices to suit different driving needs. The AMSOIL Signature Series 0W-20 provides the highest level of protection, with laboratory testing showing 75% more engine protection against horsepower loss and wear compared to conventional oils. It is rated for up to 25,000 miles or one year, whichever comes first. For those seeking slightly shorter intervals without sacrificing quality, the AMSOIL Extended-Life 0W-20 offers 20,000 miles of protection and includes a powerful detergent package to keep the engine clean. It also fights against Low-Speed Pre-Ignition (LSPI), a common issue in modern turbocharged and high-strung engines.
The AMSOIL OE 0W-20 is an excellent option for drivers who want full synthetic protection at a competitive price point. It meets or exceeds GM dexos1 Gen 2 specifications and helps reduce sludge and deposits. For Gladiator owners with vehicles exceeding 75,000 miles, the AMSOIL 0W-20 High-Mileage Motor Oil features a unique chemistry with boosted detergents and anti-wear additives. It helps reduce sludge by 67% and is designed to maintain engine performance in older high-mileage units. Regardless of the oil selected, filtration is equally important. The AMSOIL Oil Filter (EA15K19) offers 99% filtration efficiency at 20 microns and provides a larger volume for contaminants, extending engine life. A compatible WIX Oil Filter (WL10010) is also available, featuring premium media that outperforms standard OEM filters.
Transmission and Drivetrain Lubrication
The Jeep Gladiator typically comes equipped with an 8-speed automatic transmission (850RE) or a 6-speed manual (AL6). The 8-speed automatic transmission requires a total fill of 9.5 quarts. To ensure smooth shifting and protect against the heat generated during off-road towing, the AMSOIL Signature Series Fuel-Efficient Automatic Transmission Fluid is a top recommendation. It remains fluid in sub-zero temperatures and resists breaking down under the rigors of challenging terrain. The AMSOIL OE Fuel-Efficient Automatic Transmission Fluid offers a reliable alternative that promotes smooth shifts and guards against leaks.
For the 6-speed manual transmission, the capacity is 4.6 pints. AMSOIL also recommends the AMSOIL Signature Series Multi-Vehicle Automatic Transmission Fluid or the AMSOIL OE Multi-Vehicle Automatic Transmission Fluid for manual applications if a dedicated manual fluid is not available, as they provide the necessary friction characteristics for smooth engagement.
The Gladiator’s robust four-wheel-drive system relies heavily on proper gear lubrication in the transfer case and differentials. The transfer case capacity varies by model, with the MP1622C requiring 3.4 pints and the MP3022C requiring 3.8 pints. Both require a fill to the bottom edge of the fill plug opening, with drain and fill plugs torqued to 21 ft/lbs. The front differential capacity is 2.1 pints, while the rear differential varies: 3.2 pints for electronic lockers and 3.0 pints for limited-slip units. For all these applications, the AMSOIL SEVERE GEAR® 75W-85 100% Synthetic Gear Lube is the optimal choice. It provides advanced protection against wear, controls thermal runaway, and includes friction modifiers specifically beneficial for limited-slip differentials. It helps reduce operating temperatures and extends the life of seals and equipment.
Cooling and Brake Systems
Maintaining the proper cooling system temperature is vital for the longevity of the 3.6L engine, especially when towing or driving in hot climates. The 2022 Gladiator’s cooling system has a capacity of 13 quarts. Owners can choose between the AMSOIL Passenger Car & Light Truck Antifreeze & Coolant (ANTPC1G), which is a pre-mixed 50/50 solution offering protection for up to 150,000 miles or 5 years. Alternatively, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant is a concentrated fluid that allows for mixing to the desired specification, offering extended protection up to 1,000,000 miles in heavy-duty applications. Both are phosphate-free and compatible with all other coolant colors.
Brake safety is paramount for any vehicle, and the Gladiator’s hydraulic system relies on DOT 3 compliant fluid. The recommended fluid is AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid. Unlike conventional fluids that can degrade over time, the synthetic formula maintains a stable viscosity and has a high boiling point to prevent vapor lock during heavy braking. This ensures excellent ABS and traction-control responsiveness, even after repeated use.
Additional Maintenance Products
To complete the maintenance regimen, the Gladiator benefits from synthetic power steering fluid. The AMSOIL 100% Synthetic Multi-Vehicle Power Steering Fluid reduces friction and helps keep seals soft to prevent leaks. It is formulated for quiet operation and offers excellent high-temperature protection. For fuel system health, the AMSOIL P.i. Performance Improver is a potent additive that cleans GDI fuel injectors, restores horsepower, and improves fuel economy. For vehicle owners who store their Gladiator during the off-season, AMSOIL Gasoline Stabilizer keeps fuel fresh for up to 12 months, preventing varnish and gum buildup.
About the 2022 Jeep Gladiator
The 2022 Jeep Gladiator represents a unique segment in the automotive world, effectively bridging the gap between a full-size pickup truck and an open-top off-road experience. Based on the rugged JT platform, which shares its foundation with the Jeep Wrangler, the Gladiator was reintroduced to the market in 2020 after a long hiatus. The 2022 model year continues to build on this legacy, offering owners a vehicle that is equally at home navigating the muddy trails of Moab or commuting on city streets.
Under the hood of the 3.6-liter V6 variant is the renowned Pentastar engine. This naturally aspirated powerhouse produces a solid balance of torque and horsepower, delivering the low-end grunt necessary for crawling over rocks or towing a camper trailer. The engine is paired with an 8-speed automatic transmission in most configurations, which provides a wide range of ratios for both fuel efficiency on the highway and precise control off-road. The Gladiator is distinctively known for its ability to be converted into a convertible, with a removable top and doors that allow for an open-air driving experience that few other trucks can match.
While the Gladiator is built for durability, it is not immune to the common issues faced by off-road vehicles, particularly those used for towing or frequent trail use. One known problem area is the tendency for the cooling system to run hot under extreme loads or in stop-and-go off-road driving. Prolonged high temperatures can degrade standard coolants, leading to corrosion and potential gasket failure. Switching to a high-performance synthetic coolant with superior heat transfer properties can mitigate this stress.
Another common challenge involves the transfer case and differentials. The factory fill fluids are often conventional or low-synthetic blends that can break down quickly under the shear forces of 4×4 engagement and heavy towing. This can lead to premature wear, overheating, and chattering noises in limited-slip differentials. Using a synthetic gear lube like AMSOIL SEVERE GEAR can extend the service intervals and provide better lubrication for the metal surfaces. Additionally, owners often report that the power steering system can become noisy or leaky after significant use or exposure to extreme temperatures. The synthetic power steering fluid helps maintain seal integrity and reduces friction, keeping the steering feel smooth and responsive. Finally, the 3.6L V6, while robust, can be susceptible to carbon buildup on intake valves and fuel injectors over time, especially with modern gasoline containing ethanol. This buildup can lead to rough idling and a loss of fuel efficiency. Periodic use of a high-quality fuel system cleaner like AMSOIL P.i. can help dissolve these deposits and restore optimal engine performance.
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