The 5 Best Def Additives (2022 reviews)

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Are you planning to buy def additives, and are you confused about the options ? Your search ends here.

Our review process:

Our Top Picks:

Stanadyne Def Additive
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Hot Shots Secret Def Additive
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Acdelco Def Additive
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Dpf Remedy Def Additive
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Motorkote Def Additive
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Stanadyne Def Additive

Stanadyne Def Additive
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The Stanadyne Def Additive is the most reliable additive on the market today. The stanadyne def additive reduces fuel consumption–tests show an average of 4% improvement in mpg and gains up to 9.6. Stanadyne diesel fuel additive performance formula the above price includes 2. Also, it improves combustion resulting in better engine starting, running & reduced noise.

The additive has improved mileage and it is more effective. Lastly, the stanadyne def additive is built for semi-trucks and it is easy to use.

Most customers found that the additive maintains injectors, has anti-gelling, lubricity and smoke reduction properties, but mostly for water removal. Also, a few say that the additive is designed to run on ultra low sulfur or lubricant. And, they strongly agree that this is a diesel fuel additive and will work great if added to the diesel fuel when you fill up your 2014 vw jetta tdi.

Why We Like This:
  • Made in the u.s.a. restores/increase horsepower.
  • This works as advertised and it allows for better fuel economy.
  • Reduces wear – lubricity improvers restore lubricity to ultra low sulfur diesel fuels.
  • This is great for fuel additives and for fuel economy.

Hot Shots Secret Def Additive

Hot Shots Secret Def Additive
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The Hot Shots Secret Def Additive's material feels more premium than its price would suggest. The hot shots secret def additive is a fully formulated concentrated cleaner that removes all internal diesel injector deposits (idids) including waxy and polymeric deposits. The Manufacturer says: Every bottle that leaves our facility is produced from start to finish at the lsi headquarters, in Mt. Also, the additive reduces wear while restoring compression and power.

Most importantly, the hot shots secret def additive cleans injector tips and disperses moisture.

Almost all customers opine that the additive is the first time using this. Then you use the 2 quarts and add whatever amount of oil you'd need to fill the vehicle full. Also, they say that the additives work for stiction issues. And, they also found that the additive will work in any diesel motor, not gas. In short, most customers agree that the additive is functionally comfortable and no one questions it.

Top Customer Quotes:
  • This will definitely help with not using it.
  • This can be used as a precaution, not a solution.
  • This has kept it running and performing well.
  • Your engine needs an extreme cleaning.

Acdelco Def Additive

Acdelco Def Additive
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Next on the list, we've got yet another additive that manages to win our hearts. It's the Acdelco Def Additive and it's widely considered as the additive that has the most suitable features. The acdelco def additive is manufactured to meet expectations for fit, form and function, offering high quality and great value. From adhesives, sealants, and cleaners to lubricants, waxes, and paints, Acdelco has all you need to keep your gm or non-gm vehicle looking and performing great. In addition, this is designed for diesel engines, Acdelco diesel exhaust fluid (def) is an aldehyde free, nox (nitrous oxide) reducing treatment.

Most importantly, the acdelco defadditive is a mixture of high purity synthetic urea and deionized water and is classified as minimum risk for transportation.

Almost all buyers quickly discovered that the additive can be used in any diesel system which requires def. Moreover, a few also found that the additive is kept in air-conditioning storage and is fresh, will be very fresh at 75. Also, a few say that the additive is gm duramax yes. In conclusion, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • It has a two - year shelf life.
  • This is used to help convert nox, an environmental pollutant, into harmless nitrogen and water.
  • This includes vented nozzle(s) that make pouring easy by helping to prevent glugging.
  • It has 1 complimentary nozzle. Extra nozzles are sold separately.

Dpf Remedy Def Additive

Dpf Remedy Def Additive
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Next on the list, we've got yet another additive that manages to win our hearts. It's the DPF remedy def additive and it's widely considered as one of the most convenient additives you can buy. The Dpf Remedy Def Additive reduces def (diesel exhaust fluid) consumption. Poor fuel combustion efficiency and your engine duty cycle contribute to increased exhaust soot. In addition, the additive is unburned fuel and the dpf collects it.

The additive is built for semi-trucks and it works as advertised. Finally, the dpf remedy defadditive is an epa registered organic fuel catalyst safe for all engines and exhaust systems.

"Product works great. " - says, one customer. In short, the tone of buyers is very positive and we believe that the additive suits the purpose.

Why We Like This:
  • This is high, a regen is necessary.
  • This is illegal by federal law, has large fines and equipment can be impounded.
  • This is eliminated as much as 90.
  • Protects your engine; reduces exhaust soot; continuously cleans fuel system and injectors.

Motorkote Def Additive

Motorkote Def Additive
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The Motorkote Def Additive's material feels more premium than its price would suggest. The motorkote def additive is effective and it has noticed a difference. Use of this product will assist in keeping your dpf (diesel particulate filter) clean. This ultra - concentrated diesel additive helps reduce the need for regenerative burn cycles and helps reduce def usage and extend diesel particulate filter life.

Above all, the motorkote def additive allows the fuel to burn clean and efficiently with minimal soot and contamination.

Overall, at the price, they believe that they got a steal of a deal with it.

Why We Like This:
  • This is a diesel fuel additive that helps reduce regen.
  • Reduce regenerative burn cycles up to 80%.
  • Reduces def usage, and reduces downtime costs.