10 BEST ENGINE ADDITIVES for sale in 2024 – compare between the best engine additives on sale.

Rank Product Rating
1
Sea Foam SF-16 Motor Treatment - 16 oz.
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Product Highlights
  • Cleans injectors, carb jets and passageways
  • Cleans and lubricates intake valves, pistons and cylinders
  • Dissolves and cleans fuel residue in fuel systems
  • Dissolves oil deposits in crankcase

$9.99 $6.97
2
Archoil AR9100 Oil Additive (16oz) for All Vehicles - Powerstroke Cold Starts, Eliminates Injector Problems
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669 Reviews
Product Highlights
  • 16oz AR9100 Friction Modifier- Treats one PowerStroke
  • Fixes 6.0 and 7.3L PowerStroke Cold Start Injector Problems.
  • For gasoline and diesel engines, gearboxes, hydraulics, differentials and power steering systems.
  • Reduces wear and extends component life

$44.95
3
zMAX 51-011 - Engine & Fuel Formula Kit - Easy to Use - Reduces Carbon Build-Up & Lubricates Metal Extending Life of Car or Truck - Runs Efficiently, Improving Gas or Diesel Mileage - 12 oz. Each
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Product Highlights
  • EXTEND THE LIFE OF YOUR VEHICLE: zMAX Engine & Fuel formulas are simple and easy to use. Micro-lubrication soaks into metal surfaces, which improves lubricity and reduces carbon deposit build-up while boosting performance and protecting vital vehicle parts.
  • ENGINE EFFICIENCY: Add zMAX Engine Formula to gain efficient combustion resulting in more power. Use the engine treatment at your routine oil change or every 6k miles to reduce engine wear, lower emissions and keep your engine running smoothly.
  • FUEL CONDITIONER: Pour zMAX Fuel Formula in the fuel tank to lubricate and maintain a clean fuel injector system. It improves fuel efficiency and performance and conditions the pumps and nozzles reducing carbon residue from the valves or pistons.
  • TRUSTED BY PROFESSIONALS & DEALERSHIPS: Stock zMAX in your garage to treat your car like a professional. From local repair shop mechanics to major car dealership groups, our formula is road tested and mechanic trusted. zMAX is eco-friendly and USA-Made!

$34.99
4
Prolong Super Lubricants PSL11000 Engine Treatment - 12 oz.
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Product Highlights
  • Includes a Formula with Anti-Friction Metal Treatment Technology
  • Features Engineering Designed to Treat Metal Surfaces of Both Gasoline and Diesel Fueled Engines
  • Offers Molecules that Interact with Metal Surfaces and Chemically Bond to Create a Protective Layer that Reduces Damaging Friction and Heat
  • Offers to Protect the Engine Even when the Motor Oil is Not Yet Fully Circulating

$16.40 $11.41
5
Restore (00016 8-Cylinder Formula Engine Restorer & Lubricant - 16 oz.
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121 Reviews
Product Highlights
  • Restores cylinder compression
  • Restores horsepower
  • Restores engine performance
  • Reduces oil consumption

$11.99 $8.97
6
TriboTEX Nano Oil Additive Car Engine Treatment: Add to Engine Lube - Makes High Mileage Cars Like New with a Synthetic Material (Treats One Regular Car, Truck, Tractor or Small Diesel)
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172 Reviews
Product Highlights
  • 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.

$109.77
7
Lucas 32 Ounce 10001 Heavy Duty Oil Stabilizer-32 Oz
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Product Highlights
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
  • Increase oil life at least 50 percent longer
  • Reduces oil consumption
  • Eliminates dry starts

$9.99
8
Rislone 4447 Compression Repair with Ring Seal - 16.9 oz.
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Product Highlights
  • Restores lost compression
  • Repairs blow-by
  • Frees sticky rings
  • Viscosity improver

$8.31
9
STA-BIL (22208) Storage Fuel Stabilizer - Guaranteed To Keep Fuel Fresh Fuel Up To Two Years - Effective In All Gasoline Including All Ethanol Blended Fuels - Treats Up To 20 Gallons, 8 fl. oz.
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2,624 Reviews
Product Highlights
  • flash_point: 81.0

$10.30
10
Yamaha ACC-RNGFR-PL-32 Outboard Ring Free Plus Fuel Additive Quart (32 ounce), Pack Of 6
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Product Highlights
  • 32 oz

$279.95

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