Top 10 Best Oil Additive for 5.7 Hemi Engines to Boost Performance

1. Liqui Moly Pro-Line Visco Stable Oil Additive, 1 Liter for Engine Protection

If you want a strong oil additive for 5 7 Hemi use, this one stands out for smooth protection and stable viscosity. It feels like the kind of product people reach for when they want a little extra peace of mind during daily driving and long trips.

Key Features That Stand Out

• ✓ Helps support good viscosity temperature behavior
• ✓ Can be mixed with standard engine oils
• ✓ Built for daily use and long-term reliability
• ✓ Focuses on engine protection under regular driving conditions

Why We Recommend It

Liqui Moly has a good reputation for consistent results, and this additive fits that image well. It is a simple pick if you want a dependable product that supports engine protection without making things complicated.

Best For

Best for drivers who want a premium-feeling additive for routine maintenance. It also makes sense if you want a product that blends easily with your current oil setup.

Pros and Cons

Pros:

• Helps stabilize oil behavior in heat and cold
• Easy to mix with standard engine oils
• Good fit for daily-driven Hemi vehicles
• Trusted brand name in the oil care space

Cons:

• Not the cheapest option on the list
• May be more than some casual users need
• Results can be subtle rather than dramatic

Customer Reviews

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2. Lucas Oil 10118 High Mileage Oil Stabilizer, 1 Quart, Pack of 2

This Lucas Oil stabilizer is a practical choice if your Hemi has higher miles and you want a little extra cushion. It is aimed at reducing wear and helping older engines feel a bit smoother.

Key Features That Stand Out

• ✓ Lubricates internal parts to help reduce wear
• ✓ Designed for high-mileage engines
• ✓ Helps support quieter engine operation
• ✓ Comes in a convenient two-pack format

Why We Recommend It

If your 5.7 Hemi has been around the block, this is one of the more sensible picks. It is easy to use, and the formula is built around helping worn engines stay protected during everyday driving.

Best For

Best for high-mileage Hemi owners who want a simple stabilizer. It is also a solid fit for drivers dealing with a bit of extra noise or oil use.

Pros and Cons

Pros:

• Good fit for older engines
• Can help reduce noise and wear
• Two-pack offers better value
• Easy to add during an oil change

Cons:

• May be thicker than some users prefer
• Not ideal if you want a pure synthetic oil-only approach
• Benefits may vary based on engine condition

Customer Reviews

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3. High Mileage Oil Stabilizer Engine Treatment Additive, Reduces Friction, Wear, and Viscosity Breakdown

If you want a budget-friendly option for your Best Oil Additive For 5 7 Hemi search, this one is worth a look. It focuses on reducing friction and helping oil stay stable under pressure.

Key Features That Stand Out

• ✓ Uses nanotechnology-based additive support
• ✓ Aims to reduce friction and wear
• ✓ Helps protect against viscosity breakdown
• ✓ Designed to support oil life during heavy use

Why We Recommend It

This is the kind of product that makes sense when you want a lower-cost way to support engine health. It may not feel as polished as pricier options, but the feature set is strong for the money.

Best For

Best for budget-minded Hemi owners who still want meaningful engine support. It is also a good pick for drivers who do a lot of stop-and-go commuting.

Pros and Cons

Pros:

• Affordable compared with many premium additives
• Targets friction and wear reduction
• Useful for daily driving and high-heat conditions
• Easy way to try an additive without spending much

Cons:

• Brand recognition is lower than some rivals
• Performance claims may feel broad
• May not be the best choice for every engine setup

Customer Reviews

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4. Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil, 1-Quart, Pack of 2

This is not an additive, but it belongs in the conversation because the right oil matters just as much. If you want a clean, modern synthetic oil for your Hemi, this is a strong baseline.

Key Features That Stand Out

• ✓ Full synthetic 5W-20 formula
• ✓ Built for strong engine protection
• ✓ Good fit for daily driving and long trips
• ✓ Helps keep engine internals cleaner

Why We Recommend It

Sometimes the best answer is not an additive at all, but a better oil. Pennzoil Ultra Platinum is a smart pick if you want to start with a strong foundation before adding anything else.

Best For

Best for drivers who want a top-tier oil change product for a 5.7 Hemi. It also pairs well with a careful maintenance routine.

Pros and Cons

Pros:

• Excellent everyday engine protection
• Good match for factory oil recommendations
• Strong choice for clean running and smooth operation
• Great option if you prefer synthetic oil over additives

Cons:

• Not a true oil additive
• May not solve wear issues by itself
• Higher cost than basic motor oil

Customer Reviews

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5. EVIL ENERGY Oil Catch Can Kit for Dodge Charger Challenger Chrysler 300 HEMI

This is a different kind of engine care product, but it matters for Hemi owners. A catch can helps keep oil vapor and grime out of the intake, which can support cleaner running over time.

Key Features That Stand Out

• ✓ Custom-fit design for select HEMI vehicles
• ✓ Helps trap oil vapor and contaminants
• ✓ Includes hoses, bracket, and fittings
• ✓ Built to support cleaner intake airflow

Why We Recommend It

If your goal is long-term protection, this is a smart support mod. It does not replace oil changes or additives, but it can help reduce buildup in the intake system.

Best For

Best for Hemi drivers who want to cut down on oil vapor buildup. It is especially useful for people who keep their vehicle for years.

Pros and Cons

Pros:

• Helps reduce intake contamination
• Vehicle-specific fitment is a plus
• Can support cleaner long-term operation
• Complete kit makes installation easier

Cons:

• Not an oil additive
• Installation takes more effort than pouring in a bottle
• Only fits certain vehicles

Customer Reviews

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6. RANSOTO 5.7L 6.4L HEMI Oil Catch Can Kit for Dodge Charger and Jeep

RANSOTO makes sense if you want a more direct HEMI-specific solution. Like the EVIL ENERGY kit, it is about keeping oil vapor and grime from causing extra buildup.

Key Features That Stand Out

• ✓ Custom-engineered for 5.7L and 6.4L HEMI engines
• ✓ Helps filter oil vapor and moisture from PCV air
• ✓ CNC-machined billet aluminum construction
• ✓ Built for long-term durability

Why We Recommend It

This is a good choice if you want a cleaner intake path and a tougher build. It is not the cheapest route, but it feels like a serious maintenance upgrade.

Best For

Best for HEMI owners who want a durable catch can with strong fitment. It is also a good fit for drivers who care about intake cleanliness.

Pros and Cons

Pros:

• Strong fit for HEMI applications
• Durable billet aluminum body
• Helps reduce carbon buildup
• Good long-term maintenance upgrade

Cons:

• Not an additive product
• Costs more than a bottle of oil treatment
• Installation may take time

Customer Reviews

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7. Cliganic Organic Jojoba Oil, 100% Pure, Cold Pressed Moisturizing Carrier Oil, 4 oz

This one is not for the engine, but it is a useful reminder that oil quality matters in general. Jojoba oil is a simple, single-ingredient product, and it is included here because many readers search for oil-related products with the same care mindset.

Key Features That Stand Out

• ✓ USDA organic certified
• ✓ 100% pure single-ingredient oil
• ✓ Cold pressed for a clean formula
• ✓ No synthetic additives

Why We Recommend It

It is not a Hemi engine product, so I would not use it as an additive. Still, it is a clean example of how simple ingredients can matter, and it may appeal to readers looking for pure oils in general.

Best For

Best for people who want a pure, organic oil for personal care. It is not meant for engine use.

Pros and Cons

Pros:

• Organic and single-ingredient
• Simple, clean formula
• Good value for personal care use
• No synthetic additives

Cons:

• Not an automotive product
• No benefit for a 5.7 Hemi engine
• Included only as a related oil product

Customer Reviews

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8. Eight Saints High Society Botanical Face Oil with Neroli, Marula, and Jojoba, 1 oz

This is another non-engine product, so it does not belong in your crankcase. I included it because many shoppers compare oil products by purity, ingredient quality, and feel.

Key Features That Stand Out

• ✓ Lightweight botanical oil blend
• ✓ Absorbs quickly without a greasy feel
• ✓ Fragrance-free and cruelty-free
• ✓ Includes marula, jojoba, and vitamin E oils

Why We Recommend It

It is a clean personal-care oil, but not a Hemi additive. If you came here for engine protection, skip this one and focus on the automotive products above.

Best For

Best for facial skin care, not for engines. It is included for completeness, not as a recommendation for your 5.7 Hemi.

Pros and Cons

Pros:

• Lightweight and fast absorbing
• Natural ingredient blend
• Good for skin care use
• Non-greasy finish

Cons:

• Not suitable for engine use
• Not relevant to Hemi maintenance
• Higher price than some basic oils

Customer Reviews

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9. 100% Pure Eucalyptus Essential Oil, 0.34 Fl Oz for Diffuser, Skin, and Aromatherapy

This is a useful essential oil, but not a motor oil additive. I would not put it in a 5.7 Hemi, yet it shows up in oil searches because the word “oil” covers a lot of ground.

Key Features That Stand Out

• ✓ 100% pure eucalyptus essential oil
• ✓ Can be used for diffuser or aromatherapy
• ✓ Small bottle size for easy storage
• ✓ Multi-use personal care product

Why We Recommend It

It is a solid essential oil, just not an automotive one. For Hemi owners, this is not a buy unless you also want a home or personal-care oil.

Best For

Best for aromatherapy and DIY use. It is not intended for engine protection.

Pros and Cons

Pros:

• Pure essential oil formula
• Useful for diffuser and home use
• Small and easy to store
• Versatile non-automotive product

Cons:

• Not for engine use
• Not relevant to the 5.7 Hemi
• Very small bottle for the price

Customer Reviews

No usable customer reviews were provided for this item.

Because of that, I would treat this as a side product only, not a real contender for the best oil additive for 5 7 Hemi.

10. GM Genuine Parts 12695942 Oil Filler Tube

This is a replacement part, not an additive, but it can still matter if you are chasing oil service issues. A proper filler tube helps keep maintenance clean and simple.

Key Features That Stand Out

• ✓ OE-style GM Genuine Parts design
• ✓ Built to factory standards
• ✓ Supports proper oil filling and service
• ✓ Designed for select GM vehicles

Why We Recommend It

If your search for the best oil additive for 5 7 Hemi led you here, this is more of a maintenance part than a treatment. It is only useful if you need this specific component for your vehicle.

Best For

Best for owners replacing a worn filler tube on compatible GM vehicles. It is not a Hemi oil additive.

Pros and Cons

Pros:

• Factory-style replacement part
• Supports clean oil service
• Backed by GM Genuine Parts quality
• Good fit for original equipment repairs

Cons:

• Not an oil additive
• Not for 5.7 Hemi applications
• Very limited use case

Customer Reviews

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