10 Best Engine Additive for High Mileage In The Us - Black Friday 2024

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Last Updated - November 23, 2024

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LUCAS
LUCAS Oil 10118 High Mileage Oil Stabilizer (Pack of 2) (2)

9.7 Long life

9.5 worth the money

9.5 distance

Why we love it

Low friction: smoother running

No dry starts: reliable

Lubricates: less wear tear
Main highlights

Key Features
Reduces friction/heat, eliminates dry starts, ensures maximum reliability, and has a cling-to-metal coating. 100% petroleum for superior lubricity.

Ideal Use Cases
Perfect for engines requiring high-performance lubrication, especially during initial startup or in high-friction scenarios.

Customer Reviews
Most praised for significantly reducing engine wear and noise, leading to smoother operation and longer engine life.
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9.8

Exceptional

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Value for Money

2

Liqui Moly
LIQUI MOLY Oil Additive Cera Tec 20002 Ceramic Wear & Tear Protection for Petrol & Diesel Engines Smoother Engine Performance, Less Friction & Lower Fuel Consumption 300 ml

9.5 Long life

9.3 worth the money

9.3 Noise level

Why we love it

Compatible with all motor oils and filter systems.

Performs well under extreme temperatures and heavy loads.

Reduces engine noise and improves fuel efficiency.
Main highlights

Mixable with All Motor Oils
Compatible with all commercially available motor oils, resists extreme temperatures, and maintains stability under high thermal and dynamic loads.

Ideal for High Mileage Engines
Perfect for vehicles with high mileage, improves engine smoothness, reduces noise, and enhances fuel efficiency in older engines.

Most Praised Feature
Customers frequently praise the significant reduction in engine noise and smoother engine performance after using the product.
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9.7

Exceptional

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3

Lucas
Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart

30% Off

9.9 Simple to use

9.9 Flavor

9.5 Long life

Why we love it

Fits all models

Easy to install

Universal
Main highlights

Key Features
Effectively combats sludge, lubricates engine parts, boosts oil pressure, and reduces noise, emissions, and oil consumption in any engine.

Ideal Use Cases
Perfect for vehicles experiencing decreased performance due to wear, older engines needing revitalization, and for regular maintenance to prevent engine issues.

Customer Praise
Most reviews highlight its remarkable ability to rejuvenate old engines, making them run smoother and quieter, as noted by numerous satisfied users.
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9.6

Exceptional

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4

Slick 50
Slick 50 750002 Recharged High Mileage Engine Treatment, 15-Ounce

18% Off

9.9 worth the money

9.7 distance

9.3 Long life

Why we love it

High mileage protection

Restores engine performance

Prevents oil leaks
Main highlights

Key Features
Enhances engine performance, revitalizes seals to prevent oil leaks, and uses powerful detergents to remove oil sludge.

Ideal Use Cases
Perfect for older engines showing wear, high mileage vehicles experiencing oil consumption, and engines needing a boost between oil changes.

Customer Praise
Most reviews highlight its effectiveness in reducing engine noise and improving overall vehicle performance, especially in older cars.
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9.5

Excellent

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5

XADO
XADO Tuning Motor Oil Additive - High Mileage Engine Restore Oil Treatment - Atomic Metal Conditioner for Gas, Diesel and LPG Engines - Friction Protectant, Cylinder Compression Restorer, Bottle 7.5oz
Main highlights

Restores Cylinder Compression: By precisely tuning the friction parts of the engine, this product restores lost compression in the cylinders, resulting in improved power output and fuel efficiency. It's suitable for gasoline, LPG, and diesel engines.
Reduces Noise and Vibration: Effectively decreases engine noise and vibration levels, providing a smoother, quieter, and more comfortable driving experience. For turbocharged and high-performance engines, regular application during each oil change is recommended for optimal results.
Increases Oil System Pressure: Enhances oil system pressure to its optimal nominal value, ensuring superior lubrication and protection of engine components. This product is effective for passenger cars and small trucks with oil systems up to 10 qts.
Extends Engine Lifespan: By combining the benefits of a metal conditioner and revitalizant, this product significantly extends the lifespan of your engine. It reduces friction and wear, leading to more reliable and long-lasting performance. Compatible with all types of motor oils.
Compensates for Engine Wear: This innovative 3-component formula, combining a two-phase complex metal conditioner and third-generation revitalizant, reduces and compensates for existing engine wear. It ensures minimal friction losses and provides partial restoration and protection against wear with a Revitalization Factor (RF) of 33.3.
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9.4

Excellent

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6

XADO
XADO EX120 Motor Oil Additive - Engine Restore - Ceramic-Metal Coating and Revitalizant - Oil Treatment for High Mileage Engines - Restores Worn Metal Parts - for Gas and LPG Vehicles (Syringe 8 ml)
Main highlights

Simple Three-Stage Treatment Process: Designed for vehicles with an oil capacity of up to 10 quarts, this treatment requires just 3 syringes for a complete application. Follow the straightforward three-stage process: warm up the engine, apply the treatment, and repeat after specific mileage intervals to achieve optimal results.
Significant Fuel Efficiency Improvement: Reduces fuel consumption when the engine is idling and during normal driving conditions. This efficiency boost not only saves money on fuel but also reduces your vehicle's environmental footprint.
Restores and Optimizes Oil Pressure: This treatment helps increase the oil pressure in your engine to its optimal nominal value, ensuring that all engine parts are well-lubricated. This leads to reduced friction and wear, promoting smoother engine operation and longevity.
Rebuilds and Protects Engine Parts for 60,000 Miles: This advanced engine treatment rebuilds worn metal surfaces and forms a protective metal-ceramic coating, significantly extending the lifespan of your engine components and providing durable protection against future wear for up to 62,000 miles.
Enhances Engine Performance and Acceleration: By leveling and increasing compression in the cylinders, this treatment increases overall engine power and improves acceleration. You'll notice a more responsive and powerful performance, making your driving experience more enjoyable and dynamic.
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9.3

Excellent

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7

Prolong Super Lubricants
Prolong Super Lubricants PSL11000 Engine Treatment - 12 oz. , White

9.9 distance

9.9 Long life

9.7 worth the money
Main highlights

Offers to Protect the Engine Even when the Motor Oil is Not Yet Fully Circulating
Offers Molecules that Interact with Metal Surfaces and Chemically Bond to Create a Protective Layer that Reduces Damaging Friction and Heat
Includes a Formula with Anti-Friction Metal Treatment Technology
Features a Formula Containing No Solid Particles Such as PTFE Resins, 'Molys', Zinc, Copper, or Graphite
Features Engineering Designed to Treat Metal Surfaces of Both Gasoline and Diesel Fueled Engines
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9.0

Excellent

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8

Gumout
Gumout 510013 High Mileage Fuel Injector Cleaner, 6 oz. (Pack of 6)

9.9 Simple to use

9.3 worth the money

9.1 distance
Main highlights

The more an engine is driven, the more carbon deposits can build up on fuel injectors, intake valves and ports
Recommended use every 3,000 miles and will not void OEM/manufacturer’s warranty
Oxygen sensor safe and safe for use in turbocharged and supercharged vehicles
Gumout High Mileage Fuel Injector Cleaner is specially formulated to remove carbon deposits from engines with more than 75,000 miles
Cleans fuel injectors, intake valves and ports to restore performance, fuel economy and prevents future carbon build-up, which reduces emissions
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8.8

Very Good

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9

XADO
XADO ATOMEX Oil Additive Stop Leak Engine - Restore Seal and Gaskets, Treatment for Car Engine High Mileage or Rear Main Seal, Best Stopper Leaks Reseal (Bottle, 250 ml)

26% Off
Main highlights

Universal Compatibility: This multi-purpose sealant works with auto, motorcycle, and marine engines, preventing fugas and leaks while rejuvenating seals, valves, and cylinders.
Leak Prevention: Ideal for stopping engine oil leakages. Engineered for all engines, including auto and motorcycle, our slick liquid formula fixes leaks and rejuvenates seals.
Elasticity Restorer: Look no further for a solution to restore elasticity ability of rubber gaskets and seals. Say goodbye to leaks and fugas with our formula for complete rejuvenation and protection.
Efficiency Enhancer: Reduces engine noise and oil consumption with our advanced formula.The slick liquid fix rejuvenates seals, valves, and cylinders, ensuring smoother operation and reducing wear.
Cost Saver: It offers complete protection for older and new engines. This multi-purpose aditivo is perfect for stopping leaks, enhancing engine performance, and extending the life of your vehicle.
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8.5

Good

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10

Engine Wizard
Engine Oil Additive - Potassium Formula for Vehicles & Semi-Trucks,Restore and Protect Engine, Sludge Removal,Valve Noise Reduction - Ideal for High Mileage (125,000+ Miles)
Main highlights

Valve Noise Reduction: By lubricating critical components, this additive effectively reduces valve noise and tapping sounds.
Sludge Removal: Its potassium-based formula helps dissolve and remove sludge buildup, ensuring optimal engine performance.
Potent Formula: Engine Wizard is a powerful oil additive designed to restore and protect vehicle engines, especially those with high mileage (125,000+ miles).
Easy Application: Simply add Engine Wizard to your engine oil for a hassle-free way to maintain and extend the life of your vehicle's engine.
Compatibility: Suitable for use in vehicles and semi-trucks, making it a versatile choice for various engine types.
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8.4

Good

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