Keeping your 2016 Dodge Challenger 6.4L running at peak performance requires more than just filling the tank and driving. The HEMI engine produces substantial horsepower, but that power comes with high demands on lubrication and thermal management. Using the correct oils and fluids ensures that every component, from the crankshaft to the transmission gears, operates with minimal friction and maximum longevity. This guide outlines the specific lubrication requirements and recommended AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil to help you maintain your Challenger’s legendary driving character.
Recommended AMSOIL Products
- AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil – Provides superior protection against horsepower loss and wear, ideal for high-output HEMI engines.
- AMSOIL Oil Filter – Delivers 99% filtration efficiency at 20 microns and reduces engine wear by capturing small, damaging contaminants.
- WIX Oil Filter – Offers premium filtration media that improves upon the performance of original equipment manufacturer branded filters.
When dealing with a high-performance machine like the Challenger, the engine oil you choose is the first line of defense. The factory specifications call for a capacity of 7.0 quarts, including the filter change. The AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil is a top-tier choice because it remains fluid in extreme sub-zero temperatures while maintaining its viscosity at high operating temperatures. This is crucial for a vehicle designed for spirited driving where engine temps can rise quickly. Furthermore, this oil offers protection up to 25,000 miles or one year under normal driving conditions, significantly extending the service interval compared to conventional oils. The oil drain plug torque should be set to 20 ft/lbs to ensure a proper seal without damaging the threads.
Pairing your AMSOIL Signature Series 0W-40 100% Synthetic Motor Oil with a high-quality filter is equally important. The AMSOIL Oil Filter features a synthetic fiber media that resists high temperatures and pressures better than standard paper filters. This ensures that even under the heavy load of a HEMI V8, contaminants are removed efficiently, preventing sludge buildup and wear. If you prefer an aftermarket alternative, the WIX Oil Filter serves as an excellent choice, offering premium media that provides improvements over standard OEM-branded filters.
Engine and Cooling System Protection
The cooling system on the 2016 Challenger is designed to handle significant heat, but it requires a coolant that can do more than just transfer heat. The system holds 15.2 quarts of fluid. Using a high-quality antifreeze prevents corrosion, protects gaskets and hoses, and ensures the engine reaches operating temperature quickly. The AMSOIL Passenger Car & Light Truck Antifreeze & Coolant is an ethylene glycol-based, 50/50 pre-mix formulation that exceeds original equipment requirements. It is phosphate, nitrate, nitrite, silicate, borate, and amine-free, making it safe for all cooling system metals and compatible with all other antifreeze colors.
For those who prefer mixing their own or need a concentrated solution for specific applications, the AMSOIL Propylene Glycol Antifreeze and Engine Coolant offers an alternative. This concentrated coolant requires mixing with distilled or high-quality water and provides protection up to 150,000 miles or five years in passenger cars. It greatly surpasses standards for metallic corrosion and erosion, ensuring your cooling system remains free of deposits that could lead to overheating.
Transmission and Drivetrain Fluids
The transmission in the 2016 Dodge Challenger with the 6.4L engine is an 8HP70 unit that requires a full fill of 9 quarts for the automatic system. Proper fluid here is critical for shift quality and protecting the complex internal clutches and gears. The AMSOIL Signature Series Fuel-Efficient 100% Synthetic Automatic Transmission Fluid is engineered to withstand the rigors of heavy towing, elevated temperatures, and challenging terrain. It remains fluid in sub-zero temperatures and provides reserve protection during heavy use, ensuring smooth shudders-free shifts even after thousands of miles.
If you prefer a more budget-friendly option that still meets high standards, the AMSOIL OE Fuel-Efficient 100% Synthetic Automatic Transmission Fluid protects against wear and promotes smooth, shudder-free shifts. For manual transmission owners (TR6060), which holds 6.8 pints, the AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid (also used as a manual transmission fluid in this application) offers excellent performance across a wide range of temperatures. The AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid is another viable option that guards against leaks and sludge.
For the rear differential, specifically the 230RIA limited-slip unit, the factory fills with a synthetic oil. The AMSOIL SEVERE GEAR 75W-90 100% Synthetic Gear Lube is the recommended replacement. It contains friction modifiers essential for limited-slip applications, helps control thermal runaway, and reduces operating temperatures. The capacity for the rear differential is 2.3 pints. The drain and fill plugs should be torqued to 20 ft/lbs.
Brake Fluid and Additives
Safety is paramount for a vehicle with this level of performance. The brake system requires a high-temperature fluid that maintains its viscosity across a wide range of temperatures. The AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid provides excellent ABS and traction-control responsiveness. It ensures a stable viscosity over a wide temperature range, which is vital for consistent braking performance in both city driving and high-speed track scenarios.
To maintain fuel system health and maximize engine efficiency, the AMSOIL P.i. Performance Improver Gasoline Additive is an essential addition to your maintenance routine. This additive restores up to 14% horsepower and cleans GDI fuel injectors to 100% flow rate after just one tank of fuel. It helps prevent carbon buildup, improves fuel economy, and reduces the need for higher-octane fuel, making it a smart choice for maintaining the longevity of your HEMI engine.
About the Vehicle
The 2016 Dodge Challenger represents the pinnacle of modern American muscle car design, blending retro styling cues from the late 1960s with cutting-edge technology. Under the hood of the 6.4L HEMI variant, you will find a naturally aspirated V8 engine that delivers a raw, visceral driving experience. This engine produces significant horsepower and torque, offering immediate throttle response that enthusiasts crave. The Challenger’s platform is based on the LX architecture, which has been refined over the years to provide a balance of aggressive handling and ride comfort.
Known for its wide stance, sculpted hood, and classic fastback silhouette, the Challenger stands out in a marketplace increasingly dominated by sedans and crossovers. Owners of this vehicle often appreciate its dual nature: it is a practical daily driver with a comfortable interior and a surprisingly spacious trunk, yet it possesses the capability to corner and accelerate like a sports car. The 6.4L HEMI, specifically the engine code J ESG J found in this model, is a powerhouse known for its reliability when maintained correctly. It utilizes a cast-iron block and aluminum heads, contributing to its durability and ability to handle high-stress driving conditions. Whether you are commuting to work or attending a car meet, the 2016 Challenger delivers a driving character that is both powerful and refined.
Maintenance Tips for Long-Term Reliability
To ensure your Challenger remains a reliable performer, regular fluid checks are essential. Beyond the AMSOIL Oil Filter and oil, keep an eye on the coolant levels and the transmission fluid dipstick if equipped. The transmission fluid should appear red and smell sweet; if it smells burnt or appears dark, a fluid change is in order. The brake fluid should be clear; any discoloration indicates moisture absorption, which lowers the boiling point and can lead to brake fade. Regularly using a fuel system cleaner like the AMSOIL P.i. Performance Improver can help keep the injectors clean and the engine running smoothly, reducing the likelihood of misfires or hesitation.
By following these specific lubrication guidelines and using the recommended products, you can maximize the lifespan and performance of your 2016 Dodge Challenger 6.4L. Taking the time to use high-quality synthetic fluids ensures that every component of your vehicle operates at its best, preserving that classic muscle car feel for years to come.