10 Best Car Oil Additives [2025]
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Finding the best car oil additives can enhance your engine’s performance and longevity. These products help reduce friction, improve lubrication, and prevent wear and tear. In this article, we will explore the top 10 car oil additives available in the market today, ensuring you make an informed choice for your vehicle.
Top 10 Car Oil Additives in the Market
Best Car Oil Additives Review
Bestseller No. 1
Liqui Moly MoS2 Anti-Friction Engine Treatment | 300 ml | Oil additive | SKU:...
- Motor oil additive - Liqui Moly MoS2 anti-friction (300 ml. Can).Fit Type: Universal
- 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
Bestseller No. 2
BestLine Racing Diamond Nano-Lubricant Engine Oil Additive For Gas & Diesel...
- Reduces friction by approximately 60% compared to conventional engines, by forming an ultra-low friction film on top of the Diamond Nano-coating. Oil additive for car engine, and oil treatment for car and truck engines.
- Use for any type of vehicle, gasoline and diesel engines. Use in motorcycles, cars, classic cars, race cars, commercial trucks, and everything in between.
- More Concentrated High-Pressure Diamond Nano Engine Treatment Formula. Helps to reduce oil changes and engine noise. Returns power and life to high mileage vehicles. Superior Heat Resistance maintains lubrication integrity up to 1,800°F (982°C), outperforming conventional PTFE-based additives. Universal Compatibility is effective in gasoline, diesel, hybrid, and racing engines across all platforms.
- Use one bottle for every 5 quarts of oil; it is best if used at every oil change. Dual-Action Formula combines cleaning detergents with protective additives to: Remove existing sludge, Prevent new deposit formation, and neutralizes acidic oil breakdown. Restore your engine easily with BestLine Racing Diamond Nano Lube, a metal surface treatment.
- Extreme Heat Resistance and Boundary Layer Protection and Surface Polishing & Friction Reduction The nanoparticles (5-10nm size) act like microscopic ball bearings between moving parts. That fills microscopic grooves in cylinder walls and bearing surfaces, polishes metal surfaces to mirror-like smoothness through mechanical action, and reduces friction by up to 60% compared to conventional oils.
SaleBestseller No. 3
Lucas Oil 10001 Heavy Duty Oil Stabilizer - 1 Quart
- The world’s #1 oil additive
- Formulated with 100% petroleum
- Suitable for new engines
- Multi-use versatility
- Trusted by pros to keep engines running smoothly under the most demanding conditions
Bestseller No. 4
TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes High...
- 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.
- QUIETER & SMOOTHER PERFORMANCE: Reverses wear in bearings by building a diamond-like carbon coating.
- 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.
- 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.
Bestseller No. 5
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
- Product Type: Auto Oil
- Package Dimensions: 8.89 L X 10.16 W X 30.48 H (Centimeters)
- Package Weight: 0.953 Kilograms
- Country Of Origin: United States
Bestseller No. 6
AtomOil Oil Additive for Car Engine and Protection | Nano Technology Motor High...
- ATOMIC SCALE PROTECTION: Formulated with nano-engineered additives, this treatment is the next generation in superior performance. It gets rid of friction and wear by creating boundary lubrication that eradicates direct surface-to-surface contact. Includes one 16 oz. bottle.
- SUPERIOR HIGH-TEMP PERFORMANCE: Experience engine thermal stability unlike any other. AtomOil's engine oil treatment is superior to other treatments for motor oils with a stellar performance in high-temperature environments.
- EXTENDS SERVICE INTERVALS: Extend the service life of your engine. Using this treatment during an oil change promotes energy savings and protection of critical engine parts. Add the entire bottle to 4-5 quarts of all varieties of mineral and synthetic engine oils.
- PROTECTS DURING INITIAL STARTS: Designed with early film activation for unprecedented surface penetration, staying power, and protection from wear damage incurred during cold starts. This engine oil stabilizer ensures every mechanism performs at its peak.
- STOPS SLUDGE, & CONTAMINANTS: With a durable protective tribochemical film, this engine oil treatment halts deposits like varnish, sludge, and other contaminants from forming on engine surfaces.
Bestseller No. 7
Bardahl 2117 NoSmoke + StopLeak Motor Oil Additive - Treatment for Oil Burning &...
- NO MORE BURNING OIL: Stop your engine from oil burning with the enhanced NoSmoke + StopLeak motor oil additive! Bardahl NoSmoke oil additive gives you top-quality protection and restoration for old engines by "filling in" loose tolerances with an extra-thick formula that reduces oil burning and excessive exhaust smoke. This engine additive stop oil burning solution ensures your vehicle runs cleaner and smoother.
- LEAK SEALER: NoSmoke + StopLeak doesn't just reduce burn; it helps seal empty spaces that develop in engines over the years, acting as an engine oil leak sealer to reduce engine noise and quiet noisy lifters. It even helps restore the reliability of dry, brittle seals to stem further oil leaks. Your car won't just run better; it'll sound better too. Stop the smoke and the noise with this effective stop leak oil additive!
- CONTROL EMISSIONS: As engines loosen, smoke and pollutants released in exhaust can increase over time, so a car that would have once passed emission standards might slip below acceptable levels. NoSmoke oil additive with StopLeak can not only help reduce or eliminate smoke, but it can also cut down on pollutants released in exhaust to help meet emissions standards. This no smoke oil additive is perfect for maintaining cleaner emissions and protecting your engine.
- MAINTAIN AND IMPROVE: Bardahl's NoSmoke + StopLeak is the best motor oil additive for older cars. Not only will it help reduce wear and improve the function of your engine, but it can also restore lost performance and help improve compression over time. Use the best engine oil additive to maintain your car's longevity when you use NoSmoke! This oil additive for car engine treatment is a must-have for any aging vehicle.
- A NAME YOU CAN TRUST: For over 85 years, Bardahl has been based in America, making the best oil additive motor products for car engines. We're a family-owned and operated company, and we pride ourselves on producing the finest products on the marketplace while developing industry-leading innovations in engine additive solutions.
Bestseller No. 8
LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU: 2020
- Reduces oil consumption via the piston rings and valve guides
- Prevents blue, smoky exhaust fumes
- Prevents leaks due to leaks at elastomeric seals
- Regenerates engine seals made of plastic and rubber
- Prevents pollution of the environment due to oil dripping from the engine
Bestseller No. 9
Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus - 16 Ounce
- Exclusive blend of extreme pressure additives designed for new motors and those with flat tappet camshafts
- Designed for race applications requiring additional extreme pressure additives
- Dyno tested to ensure faster break-in and reduced blow by
- Excellent for flat tappet camshafts during break-in or as an additive to any motor oil to prevent premature wear
- Helps seat in new rings for optimal performance
Bestseller No. 10
Pro Oil Additive for Car Engine - SuperNano Engine Remetalizer - Engine Flush...
- Motor Flush for Engine Wear: Discover the power of advanced nanoparticle technology combined with precision German engineering. SuperNano engine oil additive repairs wear and tear, restores lost compression, and reduces vibration and noise for a smoother, quieter drive.
- Improves Engine Performance: Our DYNO-tested engine restore additive delivers comprehensive protection, reduces engine vibration by up to 47%, extends oil life, and enhances thermal efficiency. SuperNano minimizes water leaks and ensures your engine operates at peak performance.
- Effortless Engine Restoration: Restoring your engine has never been simpler! With quick and easy application, just pour SuperNano directly into your engine oil—no tools or complicated steps required. Enjoy professional-grade results in minutes.
- Compatible with All Engine Types: Whether you drive a gasoline, diesel, naturally aspirated, or hybrid engine, our oil additives for high mileage engines are designed to perform. Perfect for DIY garage enthusiasts, professional mechanics, car meets, and tuning events, it’s the ideal solution for all lifestyles.
- For Owners Who Care About Their Engines: Trusted by drivers worldwide, SuperNano Engine Remetalizer is more than an additive—it’s a commitment to excellence. Show your engine the care it deserves with a product that combines innovation, reliability, and performance.
Quick Recap
Choosing the best car oil additives is essential for maintaining your engine’s health and efficiency. The right additive can lead to smoother operation and extended engine life. With our review of the top options, you can confidently select the perfect product to meet your automotive needs.
