Top 19 Best Engine Oil Additives 2022 (Reviews)

1. Liqui Moly 2009 Anti-Friction Oil Treatment

Liqui Moly 2009 Anti-Friction Oil Treatment

Liqui Moly 2009 Anti-Friction Oil Treatment
  • Motor oil additive – Liqui Moly MoS2 anti-friction (300 ml. Can)
  • Forms High load-bearing film of lubricant on all friction surfaces
  • You will be surprised at how much better your engine sounds and how controlled it will be even at very high RPM
  • Flash point: 181.0 degrees_celsius

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2. Bar’s Leaks High Mileage Engine Repair, 16

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Bar's Leaks High Mileage Engine Repair, 16Bar's Leaks High Mileage Engine Repair, 16Bar's Leaks High Mileage Engine Repair, 16
  • Quiets Noise
  • Increases Oil Pressure
  • Reduces Friction
  • Helps Clean Internal Parts

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3. Lucas Oil 10001 Heavy Duty Oil Stabilizer

Lucas Oil 10001 Heavy Duty Oil Stabilizer

Lucas Oil 10001 Heavy Duty Oil StabilizerLucas Oil 10001 Heavy Duty Oil StabilizerLucas Oil 10001 Heavy Duty Oil Stabilizer
  • Raises Oil Pressure
  • Virtually eliminates dry starts and excessive wear
  • Will not sludge or varnish
  • Lowers engine temperature
  • Extends oil and engine life
  • For use in any engine, gasoline or diesel

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4. Prolong Super Lubricants PSL11000 Engine Treatment

Prolong Super Lubricants PSL11000 Engine Treatment

Prolong Super Lubricants PSL11000 Engine TreatmentProlong Super Lubricants PSL11000 Engine Treatment
  • Includes a Formula with Anti-Friction Metal Treatment Technology
  • Offers Molecules that Interact with Metal Surfaces and Chemically Bond to Create a Protective Layer that Reduces Damaging Friction and Heat
  • Features Engineering Designed to Treat Metal Surfaces of Both Gasoline and Diesel Fueled Engines
  • Offers to Protect the Engine Even when the Motor Oil is Not Yet Fully Circulating
  • Features a Formula Containing No Solid Particles Such as PTFE Resins, ‘Molys’, Zinc, Copper, or Graphite

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5. Rislone 4405 Engine Oil Supplement Concentrate with Zinc Treatment

Rislone 4405 Engine Oil Supplement Concentrate with Zinc Treatment

Rislone 4405 Engine Oil Supplement Concentrate with Zinc TreatmentRislone 4405 Engine Oil Supplement Concentrate with Zinc TreatmentRislone 4405 Engine Oil Supplement Concentrate with Zinc TreatmentRislone 4405 Engine Oil Supplement Concentrate with Zinc Treatment
  • Increases Engine Life
  • Prevents Camshaft Wear
  • Reduces Piston Scuffing
  • Makes Newer Oils Work In Older Engines

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6. Bar’s Leaks Oil Seal Engine Oil Burning and Leak Repair

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Bar's Leaks Oil Seal Engine Oil Burning and Leak RepairBar's Leaks Oil Seal Engine Oil Burning and Leak Repair
  • Works In All Gasoline And Diesel Engines Including Turbocharged, Eco Boost, Hybrid And Even Racing Engines, Including 3, 4, 5, 6, 8 And 10 Cylinder Engines In All Cars, Trucks, Vans And Suv’S
  • This Premium Quality Synthetic Blend Works With All Types Of Motor/Engine Oil Including Regular Petroleum, High Mileage, Synthetic Blends And Fully Synthetic Formulas
  • In Most Cases The Oil Leak Issue Will Be Repaired With A Single Dosage. However, For Best Results And To Prevent The Problems From Reoccurring, Use With Every Other Oil Change, Or Once Per Year
  • Can Also Be Used In Heavy-Duty Applications As Well As Tractors, Boats, Rv’S, Motorcycles (Including Wet Clutch), Atv’S, Lawn Equipment

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7. REV X ZDDP Oil Additive – Zinc & Phosphorus

REV X ZDDP Oil Additive - Zinc & Phosphorus

REV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & Phosphorus
  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • ZDDP protects high-load components from excessive wear and failures.
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Use in every oil change for maximum protection.
  • Works in both synthetic and standard mineral-based oils.
  • Mandatory for all flat tappet engines.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 – 3200 parts per million (ppm).

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8. BestLine Racing Diamond Nano-Lube Engine Oil Treatment

BestLine Racing Diamond Nano-Lube Engine Oil Treatment

BestLine Racing Diamond Nano-Lube Engine Oil TreatmentBestLine Racing Diamond Nano-Lube Engine Oil TreatmentBestLine Racing Diamond Nano-Lube Engine Oil TreatmentBestLine Racing Diamond Nano-Lube Engine Oil TreatmentBestLine Racing Diamond Nano-Lube Engine Oil Treatment
  • Use for any type of vehicle from go carts to commercial trucks and everything in between.
  • Save Fuel and Increase The Life of Your Equipment
  • More Concentrated High-Pressure Formula
  • Extreme Heat Resistance and Boundary Layer Protection
  • Use One Bottle for Every 5 quarts of oil
  • Reduces friction by approximately 60% compared to conventional engines, by forming an ultra-low friction film on top of the Diamond Nano-coating.
  • Use 1 Gallon of DNL Engine Treat (Semi/Large Trucks)
  • Lubricates with Diamond Nano-Particles
  • Cleans & Treats Internal Components
  • Use One bottle – 12 ounces of DNL Engine Treat (cars)

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9. Liqui Moly (20002) Cera Tec Friction Modifier

Liqui Moly (20002) Cera Tec Friction Modifier

Liqui Moly (20002) Cera Tec Friction ModifierLiqui Moly (20002) Cera Tec Friction ModifierLiqui Moly (20002) Cera Tec Friction ModifierLiqui Moly (20002) Cera Tec Friction Modifier
  • No deposits and absolutely compatible with all commonly used filter systems
  • Stable even under high thermal and dynamic permanent loads
  • Resists extremely high and low temperatures
  • Mixable with all commercially available motor oils

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10. Lucas Oil 10063 Engine Break in Oil Additive

Lucas Oil 10063 Engine Break in Oil Additive

Lucas Oil 10063 Engine Break in Oil Additive
  • Not designed for passenger car use
  • Affordable Solutions
  • Exclusive blend of extreme pressure additives
  • Excellent for flat tappet camshafts or as an additive

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11. Liqui Moly 2037 Pro-Line Engine Flush

Liqui Moly 2037 Pro-Line Engine Flush

Liqui Moly 2037 Pro-Line Engine Flush
  • Neutral to seals and other materials installed in the engine
  • Easy way to clean and flush the oil systems of gasoline and diesel engines
  • Compatible with catalytic converters
  • Gentle and rapid cleaning
  • Simple to use

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12. REV X ZDDP Oil Additive – Zinc & Phosphorus

REV X ZDDP Oil Additive - Zinc & Phosphorus

REV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & PhosphorusREV X ZDDP Oil Additive - Zinc & Phosphorus
  • Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
  • Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 – 3200 parts per million (ppm).
  • Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
  • Mandatory for all flat tappet engines.
  • ZDDP protects high-load components from excessive wear and failures.
  • Use in every oil change for maximum protection.
  • Works in both synthetic and standard mineral-based oils.

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13. XADO engine oil additive – protection for engines

XADO engine oil additive - protection for engines

XADO engine oil additive - protection for enginesXADO engine oil additive - protection for enginesXADO engine oil additive - protection for enginesXADO engine oil additive - protection for enginesXADO engine oil additive - protection for engines
  • Provides active protection against overload and overheating | Extends lifespan
  • Engine oil additive restores the surfaces of the engine parts and compensates for the resulting wear
  • Restoration of engine compression | Repair of the surfaces
  • Motor oil additive with Revitalizant | Engine oil additive | Suitable for gasoline and gasoline engines
  • Lowers fuel consumption effectively | protects the engine against wear | Atomic metal conditioner

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14. Slick 50 750002 Recharged High Mileage Engine Treatment

Slick 50 750002 Recharged High Mileage Engine Treatment

Slick 50 750002 Recharged High Mileage Engine TreatmentSlick 50 750002 Recharged High Mileage Engine Treatment
  • High Mileage solution to protect against power robbing friction heat and wear
  • Restores performance in engines due to wear and oil consumption in older engines
  • Revitalizes seals to help stop oil leaks and prevent them from ever occuring
  • Powerful detergents to remove and prevent oil sludge, use during your next oil change or between changes to replace lost additive content
  • Powerful detergents to remove and prevent oil sludge, use during your next oil change or between changes to replace lost additive content
  • This product is dispensed in 10W-30 which is a multi-grade oil but is fully compatible with all multi grade motor oils and mono grade oils. It is fully compatible with all conventional, semi-synthetic and full synthetic oil types.

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15. Restore (00012 6-Cylinder Formula Engine Restorer & Lubricant

Restore (00012 6-Cylinder Formula Engine Restorer & Lubricant

  • Reduces oil consumption
  • Restores horsepower
  • Restores cylinder compression
  • Restores engine performance

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16. TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube

TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube

TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine LubeTriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine LubeTriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine LubeTriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine LubeTriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube
  • UNIVERSAL: Compatible with all types of motor oil and can be used in gas or diesel engines. Use for both old and new cars. It is an excellent engine booster.
  • GROUNDBREAKING: Made in the USA – TriboTEX is a revolutionary engine oil additive. It contains synthetic nanoparticles developed with funding from the U.S. Department of Energy, NASA, & the National Science Foundation.
  • EFFICIENT: Our masterfully engineered engine treatment improves fuel consumption and reduces engine noise. It is time to improve your engine and take your driving experience to a new level.
  • GUARANTEED QUALITY: We know you will be delighted with this ground-breaking technology. Our treatment comes with a 100% satisfaction guarantee.
  • QUIETER & SMOOTHER PERFORMANCE: Reverses wear in bearings by building a diamond-like carbon coating.

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17. Liqui Moly 20004 Hydraulic Lifter Additive

Liqui Moly 20004 Hydraulic Lifter Additive

Liqui Moly 20004 Hydraulic Lifter AdditiveLiqui Moly 20004 Hydraulic Lifter AdditiveLiqui Moly 20004 Hydraulic Lifter Additive
  • Cleans valve bores
  • Flash point: 60.0 degrees_celsius
  • Suitable for use in vehicles with turbochargers and vehicles with catalytic converters
  • Improves the lubrication properties of the oil
  • Prevents engine noises caused by hydraulic tappets

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18. High Mileage Oil Treatment, Stop Leak Formula for Cars and Trucks

High Mileage Oil Treatment, Stop Leak Formula for Cars and Trucks

High Mileage Oil Treatment, Stop Leak Formula for Cars and TrucksHigh Mileage Oil Treatment, Stop Leak Formula for Cars and Trucks
  • One 15 fl oz bottle of STP High Mileage Oil Treatment + Stop Leak
  • ZDDP oil additive prevents wear to protect your high-mileage vehicle
  • Formulated for vehicles with more than 75,000 miles
  • Leak stopper helps prevent engine leaks, noises and smoking and helps to rejuvenate seals and gaskets
  • High-viscosity formula creates a thick cushion between moving engine parts to reduce friction
  • Add this oil treatment to engine oil during every oil change

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19. Restore (00009 4-Cylinder Formula Engine Restorer & Lubricant

Restore (00009 4-Cylinder Formula Engine Restorer & Lubricant

  • Restores horsepower
  • Restores engine performance
  • Restores cylinder compression
  • Reduces oil consumption

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