Ram Hemi 5.7 Oil: Capacity & Type Guide

The Ram Hemi 5.7 engine is a true powerhouse, renowned for its formidable strength, impressive performance, and outstanding towing capabilities. To ensure this engineering marvel continues to deliver peak performance and boasts a long lifespan, selecting the correct engine oil is absolutely paramount. Using the wrong type or an insufficient quantity of oil can lead to detrimental engine damage, diminished efficiency, and ultimately, costly repairs. This comprehensive guide will delve into every aspect of lubricating your Ram Hemi 5.7, from the precise oil capacity and recommended types to essential maintenance intervals and step-by-step instructions for checking and changing your oil.

Understanding Your Ram Hemi 5.7's Oil Requirements

Choosing the right oil isn't just a recommendation; it's a critical requirement for your Ram Hemi 5.7. The engine's advanced design, including features like Variable Valve Timing (VVT) and Multi-Displacement System (MDS), relies on specific oil properties for optimal operation. These systems are highly sensitive to oil viscosity and cleanliness, making the correct choice non-negotiable.

What Oil Type Does a Ram Hemi 5.7 Require?

For the Ram Hemi 5.7 engine, the unwavering recommendation is SAE 5W-20 full synthetic oil. Synthetic oil is not merely an upgrade; it is the superior choice for modern engines like the Hemi due to its advanced molecular structure. Unlike conventional oils, synthetic formulations offer exceptional resistance to thermal breakdown, superior lubrication across a wider temperature range, and reduced sludge formation. This translates to better engine protection, enhanced fuel economy, and extended oil change intervals. While conventional oils might seem like a cheaper alternative, they simply cannot provide the level of protection and performance that a high-performance engine like the Hemi demands, potentially leading to premature wear and tear.

How Much Oil Does a 5.7 Hemi Take?

A common question among Ram Hemi 5.7 owners is regarding its oil capacity. Whether your 5.7 Hemi is in a Ram 1500, a Dodge Charger, or any other vehicle, the engine consistently requires 7 quarts (approximately 6.6 litres) of engine oil. It’s crucial to add the correct amount; underfilling can lead to insufficient lubrication and overheating, while overfilling can cause foaming, aeration, and potentially damage seals and gaskets. Always ensure you measure accurately.

Recommended Oil Brands and Their Benefits

While the type and viscosity are critical, opting for reputable brands known for their quality and performance can further safeguard your engine. Here are a couple of highly regarded options for your Ram Hemi 5.7:

Mobil 1 Extended Performance

• Benefits: This oil is engineered to offer exceptional engine protection and cleanliness, even under severe driving conditions. Its advanced formulation helps to prevent deposits and sludge build-up, ensuring critical engine components remain lubricated and protected.
• Advantages: Mobil 1 Extended Performance is specifically designed for extended drain intervals, capable of lasting for up to 20,000 miles between oil changes, though always adhere to your vehicle's manufacturer recommendations first.
• Capacity: As with all 5.7 Hemi engines, the required amount is 7 quarts.

Royal Purple HPS (High Performance Street)

• Benefits: Royal Purple is known for its high-performance lubricants that provide superior wear protection and increased horsepower and torque. Its proprietary Synerlec® additive technology creates a tougher, more durable oil film, reducing friction and heat.
• Advantages: This oil is designed to provide greater protection and can last for up to 12,000 miles between oil replacements, offering another excellent choice for those seeking enhanced engine longevity.
• Capacity: The standard 7 quarts is needed for the Ram Hemi 5.7 engine.

Oil Change Intervals: When to Service Your Hemi

The general guideline for oil changes on a Ram Hemi 5.7 engine is every 7,500 miles or 6 months, whichever comes first. However, modern Ram trucks often feature an Oil Change Indicator System that monitors driving conditions and engine operating parameters to determine the optimal oil change interval. It is highly advisable to follow this system's guidance, as it accounts for your specific driving habits (e.g., heavy towing, frequent short trips, extreme temperatures) that can accelerate oil degradation. Regularly monitoring your oil level and condition is also essential. If the oil appears dirty, dark, or has a strong burnt smell, it's time for a change, regardless of the mileage or time interval, to ensure optimal engine longevity and performance.

Ram Hemi 5.7 Engine Specifications

The Ram Hemi 5.7 has evolved over the years, maintaining its core identity as a powerful V8. Understanding its specifications helps appreciate why specific oil requirements are in place.

The consistent displacement and V8 configuration across generations highlight the engine's core design stability. The introduction of MDS (which deactivates cylinders under light load for fuel efficiency) and the recent eTorque mild hybrid system further underscore the need for high-quality synthetic oil capable of handling the demands of these advanced features and ensuring smooth performance.

How to Check and Replace the Oil in Your Ram Hemi 5.7

Regularly checking and changing your oil are fundamental aspects of vehicle maintenance that contribute significantly to the optimum engine performance and longevity of your Ram Hemi 5.7. While professional servicing is always an option, performing these tasks yourself can be a rewarding experience.

Checking the Oil in Your Ram Hemi 5.7: A Step-by-Step Guide

1. Preparation: Ensure your Ram Hemi 5.7 engine is turned off and the vehicle is parked on a flat, level surface. This allows the oil to settle in the oil pan, providing an accurate reading.
2. Locate the Dipstick: Open the bonnet and identify the engine oil dipstick. It typically has a brightly coloured handle (often yellow or orange).
3. Initial Clean: Pull the dipstick out completely. Using a clean rag or paper towel, wipe off all the oil from the dipstick. This ensures that your next reading is accurate and not influenced by oil splashes.
4. Reinsert and Check: Fully reinsert the cleaned dipstick into its tube until it's seated firmly. Wait a few seconds for the oil to mark the dipstick, then pull it out again.
5. Read the Level: Observe the oil level on the dipstick. There will be two marks (often 'MIN'/'ADD' and 'MAX'/'FULL' or a cross-hatched area). The oil level should ideally fall between these two marks.
6. Top Up if Low: If the oil level is below the 'MIN' mark, you need to add the recommended type of oil (SAE 5W-20 full synthetic). Add a small amount at a time, rechecking the dipstick after each addition, until the level reaches the 'MAX' mark. Be careful not to overfill.

Ram Hemi 5.7 Oil Changing: A Detailed Process

Changing your oil requires a few more tools and a bit more effort, but it's entirely manageable for the keen DIY enthusiast.

1. Warm the Engine: Drive your Ram Hemi 5.7 for a short while (5-10 minutes) to warm up the engine. Warm oil flows more easily, allowing for a more complete drain.
2. Park and Secure: Turn off the engine and park your Ram Hemi 5.7 on a flat, level surface. Engage the parking brake. For safety, consider using jack stands if you need to lift the vehicle for better access.
3. Prepare for Drainage: Place a suitable oil drain pan directly underneath the oil pan, ensuring it's large enough to hold at least 7 quarts of oil. Locate and remove the oil filler cap on top of the engine; this helps the oil drain faster.
4. Drain the Old Oil: Carefully locate the oil drain plug on the bottom of the oil pan. Using the correct size wrench, loosen and remove the drain plug. Be prepared, as the oil will begin to flow out immediately. Allow all of the old oil to drain completely into the pan. This can take 10-15 minutes.
5. Replace the Drain Plug: Once the oil has finished draining, clean the drain plug and its sealing washer (replace the washer if it's crushed or damaged). Reinsert the drain plug and tighten it to the manufacturer's specified torque. Do not overtighten, as this can damage the oil pan.
6. Replace the Oil Filter: Locate the old oil filter. Place the drain pan underneath it, as some oil will spill. Loosen the old filter using an oil filter wrench and remove it. Before installing the new filter, apply a thin film of new engine oil to the rubber gasket of the new filter. This helps ensure a good seal. Hand-tighten the new filter until it's snug, then give it an additional quarter to half-turn.
7. Add New Oil: Using a funnel, carefully pour the recommended oil type and quantity (7 quarts of SAE 5W-20 full synthetic) into the oil filler cap.
8. Circulate and Check: Replace the oil filler cap. Start the engine and let it run for a few minutes. This allows the fresh oil to circulate throughout the engine and fill the new oil filter.
9. Final Level Check: Turn off the engine and wait a few minutes for the oil to settle. Use the dipstick once more to check the oil level, ensuring it is at the 'MAX' mark. Top up if necessary.
10. Dispose of Old Oil: Properly dispose of the used oil at a certified recycling centre. Never pour it down drains or onto the ground.

Frequently Asked Questions About Ram Hemi 5.7 Oil

How many quarts of oil does a 5.7 Hemi take?

The 5.7 Hemi engine, regardless of the specific vehicle it's installed in, consistently has an oil capacity of 7 quarts, which is roughly 6.6 litres. These powerful engines require a sufficient volume of high-quality motor oil to operate efficiently and reliably.

What kind of oil does the 2019 Ram 1500 Hemi take?

The 2019 Ram 1500 with the 5.7 Hemi engine requires full synthetic SAE 5W-20 engine oil. Conventional motor oil is not suitable for this engine. Synthetic oils offer superior performance, especially in terms of resistance to extreme temperatures (both hot and cold), better lubrication, and reduced wear compared to conventional oils, which is crucial for a large, high-performance engine like the Hemi.

What is the best engine oil for the Hemi engine?

The official recommendation for the best oil for the 5.7 Hemi engine is API-certified SAE 5W-20 full synthetic engine oil. Brands like Mobil 1 Extended Performance and Royal Purple HPS are highly regarded for their ability to keep engines clean, prevent corrosion, and perform exceptionally well in various conditions, including cold starts. While some premium synthetic oils might be more expensive, the investment pays off in terms of engine protection and longevity.

What does HEMI mean on a Dodge?

The term "HEMI" refers to the hemispherical combustion chambers within the engine's cylinders. This design allows for larger valves and a more efficient burn of the air-fuel mixture, contributing to the engine's characteristic power output. Chrysler first introduced modern HEMI engines in Dodge trucks starting in 2003, and the word has since become synonymous with big, powerful engines, especially within the Dodge and Ram lineups.

How often should oil be changed in a Hemi?

For most Ram Hemi 5.7 engines, the manufacturer-recommended oil change interval is every 7,500 miles or 6 months, whichever comes first. However, many modern Ram trucks are equipped with an intelligent oil life monitoring system that adjusts this interval based on your specific driving conditions. It's generally best practice to follow your vehicle's oil life monitor, as it provides a more accurate assessment of when your oil needs changing. Some drivers, especially those who frequently tow or drive in harsh conditions, may opt for slightly more frequent changes, but as long as you adhere to the recommended intervals (or the truck's indicator), your engine should remain in excellent condition.

Conclusion

Maintaining the smooth operation and ensuring the long life of your Ram Hemi 5.7 engine hinges on routine oil changes using the correct type and quantity of oil. While conventional oils are generally less expensive, full synthetic oils offer vastly superior performance, enhanced protection, and extended durability, making them the only sensible choice for your Hemi. Always consult your owner's manual for the most precise recommendations regarding oil type and brand, and opt for reputable brands known for their quality. By diligently adhering to the manufacturer's suggested oil change intervals and regularly monitoring your oil level and condition, you will keep your powerful truck in top condition, ensuring years of reliable performance. With the insights provided in this guide, you now possess all the essential knowledge to select the best Ram Hemi 5.7 oil type for your vehicle and maintain it with confidence.

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