Best Oil Additives In May 2025

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Are you looking for the Top 10 Best Oil Additives? Well, just grab a cup of coffee and read on! We are huge fans of Best Oil Additives and have done our comprehensive research here.

To help you in your search, we have completed this list of the Best Oil Additives.

Top Rated Best Oil Additives Of 2025

Rank	Product Name	Score
1	LUCAS OIL 10001 Heavy Duty Oil Stabilizer Quart Buy Now	9.7 Buy Now
2	CamGuard Oil Additive (Aircraft) Buy Now	9.5 Buy Now
3	Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2) Buy Now	9.1 Buy Now
4	Lucas Oil 10002 Heavy Duty Oil Stabilizer, 1 Gallon Buy Now	8.8 Buy Now
5	BestLine Premium Synthetic Engine Treatment with Nano Diamond Technology Extreme Pressure Lubricant Buy Now	8.6 Buy Now
6	Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml Buy Now	8.3 Buy Now
7	REV X Stiction Fix Oil Treatment - Two 4 fl. oz. Bottles Buy Now	8.1 Buy Now
8	TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes Buy Now	7.8 Buy Now
9	REV X High Performance Oil Additive (4) Buy Now	7.5 Buy Now

1. LUCAS OIL 10001 Heavy Duty Oil Stabilizer Quart

• Raises oil pressure
• Reduces oil consumption
• Eliminates dry starts
• Increases power and miles per gallon
• For best performance, follow the manufacturer's recommendations in your vehicle owners manual.
• Increase oil life at least 50 percent longer

2. CamGuard Oil Additive (Aircraft)

• For aircraft engines only- 16 oz bottle
• Fights rust and corrosion
• Conditions seals
• Prevents engine deposits
• Reduces cam and lift wear

3. Marvel Mystery Oil MM12R - 16 Fl Oz. (Pack of 2)

• Kit includes (2) 16oz. bottles of marvel mystery oil additive
• Reduces and prevents varnish and gum build-up
• Prevents valve sticking and clatter
• Cleans and lubricates fuel injectors and carburetors
• Prevents oil breakdown caused by extreme temperatures

4. Lucas Oil 10002 Heavy Duty Oil Stabilizer, 1 Gallon

• Reduces oil consumption
• Increase oil life at least 50% longer
• Made in the usa
• Reduces oil consumption
• Raises oil pressure
• Raises oil pressure

5. BestLine Premium Synthetic Engine Treatment with Nano Diamond Technology Extreme Pressure Lubricant

• Try it with confidence: bestline engine oil treatment comes with a 100% money back guarantee
• Reduces friction: diamond nano-lubricant noise remover additive creates boundary layer protection on metal
• Universal bestline additive: 100% pure synthetic use in gas or diesel car, truck, motorcycle engines
• Oil additive: use 1 bottle for every 5 quarts of oil for smoother starts & maximum engine protection
• Bestline engine treatment: increase power/gas mileage.

6. Liqui Moly (20002) Cera Tec Friction Modifier - 300 ml

• Mixable with all commercially available motor oils
• Stable even under high thermal and dynamic permanent loads
• No deposits and absolutely compatible with all commonly used filter systems
• Resists extremely high and low temperatures

7. REV X Stiction Fix Oil Treatment - Two 4 fl. oz. Bottles

• Extends the service life of all synthetic, semi-synthetic, and mineral based oils providing a reduction of wear of all treated engine components.
• Greatly improves or eliminates cold start issues in all diesel engines.
• Quiets engine noise while cleaning harmful deposits, varnish and sludge in all engines. reduces friction by creating a microscopic friction reduction layer on all treated components to reach areas standard oils can not.
• Two 4 fl. oz. bottles of rev x high performance oil additive in our stiction fix retail box. will treat up to 12 quarts of oil.
• Removes stiction, common in heui injectors, without using harmful and dangerous chemical strippers.

8. TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes

• 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.
• 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.
• 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.
• 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.

9. REV X High Performance Oil Additive (4)

• Increased efficiency, horsepower and torque
• Greatly improved cold start operation, dramatic reductions in component wear
• Smoother operation of all treated components
• Enhances injection systems for proper operation
• Four - 4oz engine oil treatment kit