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

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

2. CamGuard Oil Additive (Aircraft)

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

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

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

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

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

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

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

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

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

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

• Removes stiction, common in heui injectors, without using harmful and dangerous chemical strippers.
• 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.
• Greatly improves or eliminates cold start issues in all diesel engines.
• Extends the service life of all synthetic, semi-synthetic, and mineral based oils providing a reduction of wear of all treated engine components.

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

• 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.
• 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.

9. REV X High Performance Oil Additive (4)

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