The 2008 Dodge Durango with the 5.7L 8-cylinder engine presents unique lubrication needs, particularly regarding its Multiple Displacement System (MDS). This engine requires SAE 5W-20 motor oil to ensure proper function and longevity. Maintaining the correct fluid levels and specifications is critical for preventing excessive wear, managing heat, and preserving engine performance over time. Whether you are dealing with extreme temperatures, long commutes, or towing heavy loads, using a high-quality synthetic lubricant can significantly extend the service life of your vehicle.
Recommended AMSOIL Products
- AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil – Offers up to 25,000 miles of protection and is specifically recommended for the MDS engine technology found in this Durango model.
- AMSOIL Extended-Life 5W-20 100% Synthetic Motor Oil – Provides extended protection for up to 20,000 miles with enhanced cleaning power to keep the engine running smoother.
- AMSOIL OE 5W-20 100% Synthetic Motor Oil – A cost-effective synthetic option that fights sludge and deposits, meeting standard manufacturer requirements.
- AMSOIL 5W-20 100% Synthetic High-Mileage Motor Oil – Formulated with boosted detergents and dispersants for engines with over 75,000 miles to help reduce sludge and consumption.
- AMSOIL Oil Filter EAO11 – Features 99% filtration efficiency at 20 microns to trap small contaminants and reduce engine wear during extended oil change intervals.
- WIX Oil Filter 57899 – Offers premium media that improves upon original equipment manufacturer filters for reliable filtration.
- AMSOIL Passenger Car & Light Truck Antifreeze & Coolant – A 50/50 pre-mix formulation that protects cooling system metals and hoses for up to 150,000 miles.
- AMSOIL Propylene Glycol Antifreeze and Engine Coolant – A concentrated formula requiring mixing with water, offering extended service life and superior corrosion protection.
- AMSOIL Signature Series Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Ideal for the 545RFE transmission, withstanding heavy towing and high temperatures while remaining fluid in sub-zero conditions.
- AMSOIL OE Multi-Vehicle 100% Synthetic Automatic Transmission Fluid – Promotes smooth, shudder-free shifts and resists harmful sludge in automatic transmissions.
- WIX Transmission Filter 58843 – A deep pan filter designed specifically for the 545RFE transmission to ensure proper flow and filtration.
- AMSOIL SEVERE GEAR® 75W-90 100% Synthetic Gear Lube – Perfect for front differentials, controlling thermal runaway and protecting against rust in limited-slip applications.
- AMSOIL SEVERE GEAR® 75W-140 100% Synthetic Gear Lube – Formulated for rear axles with a 9.25 ring gear, providing robust protection under high loads.
- AMSOIL DOT 3 and DOT 4 100% Synthetic Brake Fluid – Maintains stable viscosity across a wide temperature range for excellent ABS and traction-control responsiveness.
Essential Fluid Capacities and Maintenance Specs
Understanding the specific capacity requirements for your 2008 Durango ensures that you perform maintenance correctly. For the 5.7L V8 engine, the total oil capacity is 7.0 quarts when changing the oil filter. After refilling, always check the oil level to ensure it is within the proper operating range. The torque specification for the oil drain plug is 25 ft/lbs, which should be used to prevent over-tightening and potential thread damage.
The cooling system is another critical component. The total coolant capacity for this vehicle is 16.6 quarts. Using a high-quality antifreeze prevents corrosion and ensures the engine operates at the correct temperature, which is vital for the longevity of the block and head gaskets. Whether you choose the pre-mixed Passenger Car & Light Truck Antifreeze or the concentrated Propylene Glycol option, proper dilution or pre-mixing is essential to achieve the intended protection level.
Transmission maintenance is equally important, especially for the 4WD models equipped with the 545RFE transmission. A total fill requires 14.1 quarts, though an initial fill for service is approximately 6.6 quarts depending on the specific procedure. For rear-wheel drive models, the capacity is similar. Ensuring the correct Automatic Transmission Fluid (ATF) is used helps prevent shuddering and extends the life of the transmission clutch packs.
Protecting Your Differentials and Transfer Case
The 2008 Dodge Durango relies on robust gear lubricants to handle the torque and stress of off-road driving or heavy hauling. For the transfer case, specifically the NV144 model, the capacity is only 1.7 pints, while the NV244 GenIII requires 3.4 pints. Using a synthetic gear lube like the SEVERE GEAR 75W-90 or 75W-110 ensures that the internal components remain protected from wear and thermal breakdown.
Differential maintenance varies based on the rear axle configuration. For the front C205F differential, 3.4 pints of 75W-90 gear lube is recommended. If your vehicle is equipped with a 9.25 ring gear rear axle, it requires 4 pints of 75W-140 gear lube to handle the higher load demands. These synthetic lubricants contain friction modifiers that are essential for limited-slip differentials to operate smoothly without chatter.
Enhancing Performance and Cleaning
Beyond standard oil changes, adding fuel system treatments can restore lost performance. The AMSOIL P.i.® Performance Improver gasoline additive helps restore up to 14% of horsepower and clears carbon deposits from fuel injectors. This is particularly beneficial for engines with direct injection technology. Additionally, using an engine fogging oil before winter storage can prevent internal rust during periods of inactivity.
For routine cleaning, the Heavy-Duty Degreaser effectively removes stubborn oil and grime from engine bays, while the Miracle Wash provides a waterless cleaning solution that leaves a protective finish. Keeping the vehicle clean not only improves its appearance but also helps in spotting potential leaks or issues early.
About the Vehicle
The 2008 Dodge Durango represents a significant era in the history of American family SUVs. Based on the popular Dodge Ram truck platform, this third-generation model offered a perfect balance between rugged capability and passenger comfort. The 5.7L Hemi V8 engine was a standout feature, delivering substantial horsepower that was rare in the mid-size SUV segment at the time. This powertrain was specifically engineered to handle the unique demands of the Multiple Displacement System (MDS), which allows the engine to switch between eight and four cylinders to save fuel during light driving conditions.
Owners of the 2008 Durango often praise its versatility. It is capable of towing significant loads, making it a favorite for families who enjoy camping, boating, or hauling recreational gear. The interior space is generous, accommodating three rows of seating comfortably for up to seven passengers. While it shares many components with the Ram 1500 truck, the Durango offers a more refined ride quality suited for daily commuting as well as weekend adventures. Its reputation for reliability and robust construction has made it a durable choice that continues to perform well on the road today, provided it receives regular maintenance with high-quality synthetic fluids.