The demand for Diesel Exhaust Fluid (DEF) continues to grow thanks to its better performance and eco-friendliness. When choosing the best DEF for your vehicle, you’ll probably come across Supertech DEF and Blue DEF. But does it matter which DEF brand you should use?
Below we look at the similarities and differences between Supertech DEF and Blue DEF. Ultimately, you’ll know what brand of DEF to choose and where to buy the fluid.
Contents
What Is Supertech DEF?
Supertech DEF is a pre-diluted diesel exhaust fluid designed for diesel vehicles. It uses high-purity urea and de-ionized (pure) water to reduce the emission of harmful nitrogen oxide (NOx). When sprayed into a vehicle’s exhaust stream, it breaks down the nitrogen oxide into nitrogen and water.
The fluid is formulated to provide optimal performance while keeping the environment safe. It’s available in a 2.5-gallon container with a special nozzle to ensure you pour it easily. Supertech DEF containers have handles to allow for convenient transportation and storage.
Who Makes Supertech DEF Fluid?
The manufacturer of Supertech DEF is Walmart. This DEF fluid is certified by the American Petroleum Institute and OEM-approved on all SCR engines.
What Is Blue DEF?
Blue DEF is a fluid made of high-purity synthetic urea and de-ionized (pure) water for diesel vehicles. It works in SCR (Selective Catalytic Reduction) systems to reduce the emission of harmful nitrogen oxide.
When injected into the vehicle’s exhaust stream, the catalyst breaks down the NOx harmful to the environment and humans. As a result, the exhaust emits two harmless components (nitrogen and water) into the atmosphere. The fluid is odorless, colorless, and stable.
Who Makes Blue DEF?
The manufacturer of Blue DEF is Old World Industries. They aim to provide a high-performance DEF to work perfectly in your vehicle and prevent insanely expensive repairs.
Similarities Between Supertech DEF and Blue DEF
Supertech and Blue DEF are similar in the following ways.
Both Are Eco-Friendly
Supertech DEF and Blue DEF use high-purity urea and deionized (pure) water as their primary ingredients. They have no chemical additives that can react with urea and water to release toxins into the atmosphere.
Urea is non-toxic and has a neutral pH, making it a safe product for the environment.
When used in diesel exhaust, urea captures nitrogen compounds thanks to its high affinity for nitrogen. This prevents the release of harmful nitrogen oxide that’s detrimental to humans and the environment. Deionized water is also safe for the environment. In the exhaust stream, it serves as a mode of transport for urea.
Better Fuel Economy
If you’re wondering which fluid to use for better fuel economy, you’re safe with Supertech DEF or Blue DEF.
Diesel engines that use the two fluids benefit from better performance. One of the reasons for better performance is the conversion of nitrogen oxide into harmless nitrogen and water. As a result, the system allows the engine to use less fuel while ensuring full combustion. And when the engine performs better, fuel consumption tends to improve.
It’s advisable to refill your DEF when the levels go down. Low levels of DEF can diminish your engine’s performance and significantly affect fuel economy.
Compatible With Various Diesel-Fired Vehicles
Supertech DEF and Blue DEF meet the required specifications and are certified to ensure they’re safe to use in diesel engines. For example, they use the correct type of urea and water to maintain the required quality.
These DEF fluids are tested and certified by reputable bodies. You can use both and achieve better performance with any vehicle run on diesel.
Differences Between Supertech DEF and Blue DEF
Supertech and Blue DEF differ in the following ways.
Origin
Before settling for a particular product, we always get concerned about where it comes from. And most buyers go for the biggest brands. Thankfully, Supertech DEF and Blue DEF come from reputable companies. That means you’re assured of a diesel exhaust fluid that offers a great bang for your buck.
Supertech DEF comes from Walmart, a brand known for producing a high-quality and environmentally-friendly fluid. Their DEF is one of the most in-demand fluids in the market.
On the other hand, Blue DEF comes from Old World Industries. It’s a famous brand with one of the best DEFs in the market.
Price Comparison
The price of Supertech DEF and Blue DEF vary, with the latter being more expensive than the former. So if you’re on a budget and want to buy a cheaper DEF for your vehicle, Supertech DEF is a good option. Various reasons, such as efficiency, explains why Blue DEF is more expensive than Supertech DEF.
Remember, the fluid price will vary depending on the seller and the gallon size. For example, a 2.5-gallon container of Supertech DEF costs between $8 and $10, while the same gallon of Blue DEF costs between $15 and $20.
Ingredients Used
Manufacturers aim at using ingredients that can reduce the emission of harmful nitrogen oxide. When choosing between Supertech DEF vs. Blue DEF based on their building components, you’re safe with either.
Both use 32.5% high-purity urea and 67.5% de-ionized water, which reduce nitrogen oxide emissions. Additionally, both don’t have additives to ensure you use pure fluid safe for your vehicle and environment.
Performance Efficiency
While both fluids use similar ingredients, their performance varies. This is common in all DEFs as they offer varying performances based on the manufacturer.
Using Supertech DEF, you’ll enjoy good fuel efficiency and fluid economy. According to most users, a 2.5-gallon Supertech DEF container can cover around 700 miles.
In contrast, Blue DEF offers an impressive performance than Supertech DEF. Blue DEF gives you the best mileage, engine power, and fuel efficiency.
A 2.5-gallon container of Blue DEF can go up to 800 miles, and a truck with 20 gallons of Blue DEF covers approximately 6,000 miles. This is one of the reasons why Blue DEF has a higher price tag. So if you want to buy DEF that offers the best performance, Blue DEF is your safe bet.
Certification Standards
Before you decide to buy any product, it’s essential to check its certification standards. This is especially true for fluids which can be detrimental to the environment if they fail to meet the required specifications.
The American Petroleum Institute (API) provides certification for Supertech DEF to ascertain that the product is pure. Additionally, Supertech DEF is approved by Original Equipment Manufacturer (OEM) for use on all SCR diesel vehicles.
Blue DEF is also certified by API to guarantee the product’s purity. It also meets ISO standards. So if you’re choosing a DEF based on certification standards, both fluid types are okay.
Customer Reviews
Most customers are happy with the pricing and better performance of Supertech DEF. The fluid is cheaper than many others in the market and offers an impressive performance. However, some users claim the product is prone to leakages when using the spout. This is due to the issues with the air-inlet valve.
For Blue DEF, most customers are happy with its performance and compatibility with multiple diesel-run vehicles. However, some are uncomfortable with the pricing. A few claim that the nozzle causes leakages when pouring.
Supertech DEF and Blue DEF Summary Comparison Table
| Supertech DEF | Blue DEF | ||
| Pros | Cons | Pros | Cons |
| Cheap | Likely to clog the SRC | It’s eco-friendly | More expensive |
| Compatible with various diesel-run engines | Doesn’t show information about meeting ISO standard | The best mileage | Heavy packaging |
| It’s eco-friendly | Short spout causing spillage | Impressive engine power | The nozzle can cause leakages |
| Comes with a nozzle for easy pouring | Best fuel economy |
So, What Brand of DEF Fluid Is Best?
The best DEF fluid between Supertech DEF and Blue DEF depends on what you aim to achieve from the product. If you’re looking for the best performance, higher mileage, and the best fuel efficiency, Blue DEF is an excellent choice. However, this fluid is more expensive than Supertech DEF.
On the other hand, if you’re interested in a cheaper fluid that offers better performance and fuel efficiency, go for Supertech DEF.
Best Place To Buy DEF Fluid
Below are the best places you can buy DEF fluid:
