The Dodge Challenger RT is a beast of a car, a modern muscle machine that blends raw power with classic American style.
For owners and enthusiasts, keeping this vehicle in top shape is a priority, and one of the most critical maintenance tasks is choosing the right oil.
The Dodge Challenger RT requires 5W-20 full synthetic oil meeting Chrysler MS-6395 standards. Recommended brands include Mobil 1, Pennzoil Ultra Platinum, or Amsoil Signature Series for optimal performance and engine protection.
This article dives deep into the specifics of the Dodge Challenger RT’s oil requirements, covering engine types, recommended oil specifications, and maintenance. By the end, you’ll have a clear understanding of what oil to use and why it matters.
Understanding the Dodge Challenger RT’s Engine
The Dodge Challenger RT has been produced in various model years, with different engine options that influence oil requirements.
The most common engine for the RT trim is the 5.7L HEMI V8, known for its robust performance and distinctive rumble.
Some later models, like those from 2019 onward, may also feature the 6.4L HEMI V8 in the RT Scat Pack variants. Each engine has specific needs, but the 5.7L HEMI is the primary focus for most RT owners due to its prevalence.
The 5.7L HEMI V8 is a high-performance engine that demands quality lubrication to handle its power output and heat generation.
Using the wrong oil can lead to increased wear, sludge buildup, or even engine failure over time.
Dodge provides clear guidelines in the owner’s manual, and these specifications are echoed across automotive forums, manufacturer websites, and service guides found in Google’s top search results.
Manufacturer’s Recommended Oil Type
For the Dodge Challenger RT with the 5.7L HEMI V8, the manufacturer recommends 5W-20 synthetic oil that meets the Chrysler MS-6395 specification.
This standard ensures the oil can handle the engine’s high-performance demands, including temperature extremes and heavy loads.
Synthetic oil is preferred because it offers better protection, improved viscosity stability, and longer intervals between oil changes compared to conventional oils.
Some sources, like posts on automotive forums such as ChallengerTalk.com, mention that 5W-30 synthetic oil can be used in certain conditions, particularly for older models or in hotter climates.
However, Dodge’s official stance, as confirmed by service manuals and dealership websites, sticks with 5W-20 for most RT models.
The 6.4L HEMI V8 in the RT Scat Pack also typically uses 0W-40 synthetic oil, especially for models like the SRT 392, but always check the owner’s manual for your specific year and trim.
Why Synthetic Oil?
Synthetic oil is engineered to provide superior performance over conventional oil. It flows better at low temperatures, ensuring quick lubrication during cold starts, which is critical for the HEMI’s components.
It also resists breakdown at high temperatures, which is common during spirited driving or track days.
According to sources like Amsoil’s website, synthetic oils reduce engine wear, improve fuel economy, and extend drain intervals, making them ideal for the Challenger RT’s demanding engine.
Oil Brands That Meet MS-6395 Standards
Not all oils are created equal, and sticking to brands that meet Chrysler’s MS-6395 certification is crucial. Popular brands recommended across top Google results, including Mopar’s official site and user discussions on Reddit’s r/Dodge, include:
- Pennzoil Ultra Platinum: A favorite among Challenger owners for its high-quality synthetic formula and MS-6395 certification.
- Mobil 1 Full Synthetic: Known for excellent engine protection and performance, widely available and trusted.
- Mopar Synthetic Oil: The OEM choice, designed specifically for Chrysler vehicles, ensuring compatibility and performance.
- Castrol EDGE: Another reliable option that meets MS-6395 standards, often praised for its durability under high stress.
When choosing an oil, check the label for the MS-6395 certification. Some owners on forums like DodgeForum.com report using non-certified oils without issues, but this risks voiding warranties or compromising engine health, especially in newer models.
Oil Capacity and Change Intervals
The 5.7L HEMI V8 in the Dodge Challenger RT typically holds 7 quarts of oil with a filter change.
This is consistent across sources like AutoZone’s maintenance guides and Mopar’s service recommendations. The 6.4L HEMI may also require around 7 quarts, though it’s wise to verify with your vehicle’s manual.
Oil change intervals depend on driving habits and conditions. For normal driving, Dodge suggests changing the oil every 6,000 to 8,000 miles or every 6 months, whichever comes first.
For severe conditions—like frequent short trips, towing, or track driving—intervals drop to 3,000 to 4,000 miles.
Websites like Car and Driver emphasize that high-performance driving, common with RT owners, qualifies as “severe” use, so more frequent changes are often necessary.
Choosing the Right Oil Filter
The oil filter is just as important as the oil itself. A quality filter ensures contaminants are removed, keeping the engine clean. Mopar’s OEM oil filters are the go-to choice, designed specifically for the HEMI engine.
Aftermarket options like K&N, WIX, or Fram Ultra Synthetic are also popular, as noted in reviews on Advance Auto Parts’ website. These filters offer high filtration efficiency and durability, which is critical for the RT’s high-output engine.
When replacing the filter, ensure it’s compatible with your engine and meets Chrysler’s specifications. A poorly designed filter can restrict oil flow or fail to trap debris, leading to engine damage.
DIY Oil Change Tips for Challenger RT Owners
Changing the oil on a Dodge Challenger RT is straightforward for those with basic mechanical skills. Here’s a step-by-step guide based on advice from YouTube tutorials and automotive blogs like The Drive:
- Gather Supplies: You’ll need 7 quarts of 5W-20 synthetic oil (MS-6395 certified), a Mopar or equivalent oil filter, a wrench, an oil filter wrench, a drain pan, and a funnel.
- Warm Up the Engine: Run the car for a few minutes to warm the oil, making it easier to drain.
- Lift the Vehicle: Use a jack and jack stands to access the oil pan. Ensure the car is secure.
- Drain the Old Oil: Remove the drain plug (usually a 13mm bolt) and let the oil drain into the pan.
- Replace the Oil Filter: Use an oil filter wrench to remove the old filter. Lubricate the new filter’s gasket with fresh oil and install it by hand.
- Refill with New Oil: Lower the car, open the hood, and pour in 7 quarts of 5W-20 synthetic oil using a funnel.
- Check the Level: After running the engine briefly, check the dipstick to ensure the oil level is correct.
- Dispose of Old Oil: Take used oil to a recycling center or auto parts store.
Always double-check the owner’s manual for specifics, as some model years may have slight variations.
Common Mistakes to Avoid
Owners on forums like Reddit’s r/Challenger warn against common errors:
- Using the Wrong Oil: Non-synthetic or non-MS-6395 oils can harm the engine.
- Overfilling or Underfilling: Too much or too little oil can cause pressure issues or inadequate lubrication.
- Ignoring Severe Driving Conditions: Track days or aggressive driving require more frequent changes.
- Cheap Filters: Low-quality filters can fail, leading to contamination.
Performance and Track Considerations
For RT owners who push their cars on the track, oil choice becomes even more critical. The 5.7L HEMI generates significant heat during high-RPM driving, and synthetic oils like 0W-40 (for Scat Pack models) or high-performance 5W-20 blends are better suited to maintain viscosity.
Some enthusiasts on SRTforums.com suggest upgrading to oils designed for racing, like Amsoil Dominator, but these may not be MS-6395 certified, so use them cautiously.
Environmental and Cost Factors
Synthetic oils are pricier than conventional ones, with a typical oil change costing $50-$100 for DIY or $100-$150 at a dealership.
However, the investment pays off in engine longevity and performance. Environmentally, synthetic oils last longer, reducing waste from frequent changes.
Always recycle used oil to minimize environmental impact, as advised by EPA guidelines referenced in online automotive resources.
Conclusion
Choosing the right oil for your Dodge Challenger RT is a critical decision that impacts performance and durability. Stick with 5W-20 synthetic oil meeting Chrysler’s MS-6395 standard for the 5.7L HEMI, or 0W-40 for the 6.4L HEMI in Scat Pack models. Brands like Pennzoil, Mobil 1, and Mopar are reliable choices. Regular oil changes, paired with a quality filter, will keep your RT’s engine roaring for years. Whether you’re cruising or hitting the track, proper maintenance ensures your Challenger RT remains a true American icon.
