ReviewsBest Engine Sealant Additive

Mobil 1 0W-30 Advanced Fuel Economy Full Synthetic Motor Oil, 5 qt.

  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual..
  • Low viscosity, advanced full synthetic formula. Helps increase engine efficiency and improve fuel economy up to 2 percent.
  • Outstanding thermal and oxidation stability.
  • Helps reduce oil aging, resulting in long lasting protection.
  • Outstanding low-temperature capabilities.
  • Quick cold-weather starting and fast protection helps extend engine life.
  • Precisely balanced additive component system.
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Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 1 Gallon with Accessories (HDPE Plastic Hand Pump and 2 Empty 4oz Bottles) Treats up to 1,280 Gallons

  • MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less..
  • IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XL Xtreme Lubricant formula. This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving..
  • CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XL Xtreme Lubricant formula cleans injectors and helps prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape..
  • ENHANCES PERFORMANCE: Whether during rain, snow, o....
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Liqui Moly 20238 Top Tec 6200 0W-20 Fully Synthetic Motor Oil - 5 Liter, 1 pack

  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual..
  • Developed for the high requirements of Audi, Porsche and VW..
  • The lower viscosity ensures excellent cold-start behavior, improves engine efficiency and reduces consumption..
  • The innovative additive technology ensures excellent protection against wear, impressive engine cleanness and greater oxidation stability..
  • Enables extremely long oil change intervals (WIV etc.)..
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Opti-Lube XPD Formula Diesel Fuel Additive: 4oz 8 Pack with Opti-Box, Treats up to 16 gallons per 4 oz bottle

  • MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less..
  • IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving..
  • CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape..
  • ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all y....
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Polaris Snowmobile VES Full Synthetic 2-Cycle Oil, for 2-Stroke Snowmobiles

  • See product description below for vehicle fitment or to verify fitment for your specific vehicle, please contact us, and provide us with your VIN that can be found on your vehicle or your insurance card..
  • CUSTOM ADDITIVE SYSTEM: VES’s custom anti-wear and detergency additives were engineered with Polaris 2-cycle engines to protect engine parts and burn clean with less carbon deposits and buildup on critical engine components..
  • OUTSTANDING PROTECTION AND PROVEN PERFORMANCE: Better cold lubrication means less effort if pull started, or less effort on battery and starter when electric started, and less wear on cold engine parts..
  • SPEC: Unique additive chemistry for optimum anti-wear protection and detergency performance for Polaris snowmobile engines..
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Polaris Snowmobile VES Full Synthetic 2-Cycle Oil, for 2-Stroke Snowmobiles

  • See product description below for vehicle fitment or to verify fitment for your specific vehicle, please contact us, and provide us with your VIN that can be found on your vehicle or your insurance card..
  • CUSTOM ADDITIVE SYSTEM: VES’s custom anti-wear and detergency additives were engineered with Polaris 2-cycle engines to protect engine parts and burn clean with less carbon deposits and buildup on critical engine components..
  • OUTSTANDING PROTECTION AND PROVEN PERFORMANCE: Better cold lubrication means less effort if pull started, or less effort on battery and starter when electric started, and less wear on cold engine parts..
  • SPEC: Unique additive chemistry for optimum anti-wear protection and detergency performance for Polaris snowmobile engines..
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Opti-Lube XPD Formula Diesel Fuel Additive: 1 Gallon with Accessories (HDPE Plastic Hand Pump and 2 Empty 8oz Bottles) Treats up to 512 Gallons

  • MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less..
  • IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving..
  • CLEANS INJECTORS: When your fuel injectors build up with residue, your engine usually doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape..
  • ENHANCES PERFORMANCE: Whether during rain, snow, or shine, Opti-Lube XPD formula delivers. It works to improve the performance of your truck all y....
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Hot Shot's Secret HSSFR332Z FR3 Friction Reducer 32 Fluid Ounce

  • 100% synthetic oil additive that protects engines and improves performance.
  • You can use the product in gas or diesel engines, works with synthetic or conventional oil.
  • FR3 Friction Reducer increases horsepower and fuel economy up to 5 percent.
  • Reduces engine wear up to 43 percent and oil operating temperature.
  • 32-ounce friction reducer engine additive reduces lifter and valve noise and restores lost compression.
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Hot Shot s Secret - HSSFR308Z FR3 Friction Reducer 8 fl oz.

  • 00% synthetic oil additive that protects engines and improves performance.
  • You can use the product in gas or diesel engines, works with synthetic or conventional oil.
  • FR3 Friction Reducer increases horsepower and fuel economy up to 5 percent.
  • Reduces engine wear up to 43 percent and oil operating temperature.
  • 8-ounce friction reducer engine additive reduces lifter and valve noise and restores lost compression.
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Opti-Lube XPD All-in-One Diesel Fuel Additive: 5 Gallon Pail and Accessories (Metal Pump and Regular Accessory Bottles)

  • MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less..
  • IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube XPD formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for both summer and winter driving..
  • CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube XPD formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape..
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DWD2 Clean Metal Conditioner - Engine Oil Additive, Friction Reducer and Stiction Eliminator for Diesel and Gasoline Engines Improve Performance and Gas Mileage - Enhance Your Motor Oil! (7.oz)

  • PROFESSIONAL GRADE - DWD2 Clean Metal Conditioner is a professional grade lubricant enhancing engine treatment that reduces heat and friction, increasing fuel economy and power..
  • HIGH-PERFORMANCE STABILIZER AND MODIFIER - Clean Metal is a high-performance oil stabilizer and modifier additive that improves power and performance in your car, truck, motorcycle, or heavy equipment..
  • OPTIMIZES YOUR MOTOR OIL - Metal Conditioner Extends engine life, suspends carbon deposits, optimizes your motor oil's effectiveness and protection, and even works with conventional and synthetic motor oils..
  • SAFE FOR GASOLINE & DIESEL ENGINES - Clean Metal motor oil additive works with both gasoline and diesel engines to produce a more fuel-efficient, smoother-running, more powerful engine..
  • WORKS WITH SYNTHETIC AND NON-SYTHETIC OILS - Metal Conditioner Oil Additive works with synthetic and non-synthetic motor oils. It also works excellently with turbo engines for increased responsiveness..
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