Katerina Swanson
Diesel fuel additives are a popular topic of discussion, with many people wondering which additive is the best for their engines. Some of the most commonly mentioned additives include Howes, Stanadyne, Hot Shots Secret, Opti-Lube, and Yamalube 2R. Many factors determine the best additive, including the age of the engine, the region, and the baseline fuel quality. For example, Opti-Lube is commonly used in the Midwest to increase lubricity when soy diesel is not included in the fuel. In addition, some additives are preferred for their convenience, such as Hot Shots for its easy-to-use squeeze bottle. While there is no clear consensus on the best diesel fuel additive, proper maintenance and regular cleaning of diesel-powered equipment are emphasized as key to their longevity.
| Characteristics | Values |
|---|---|
| Best diesel fuel additives | Hot Shots, Optilube, Stanadyne, Howes, Diesel Kleen, Yamalube 2R, Cera-tec by Liqui Moly, Seafoam, Marvel Mystery Oil, Diesel Extreme |
| Best diesel fuel additive for lubricity | Hot Shots, Stanadyne, Howes, Archoil, Optilube |
| Best budget diesel fuel additive | Hot Shots, Yamalube 2R |
| Best diesel fuel additive for lube and increasing BTUs | ATF |
| Best diesel fuel additive for older engines | Biodiesel |
| Best diesel fuel additive for removing deposits and moisture | Diesel Extreme |
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$44.95
What You'll Learn
Opti-lube vs Hot Shots
Opti-Lube and Hot Shots are two popular brands of diesel fuel additives. Opti-Lube offers products such as Opti-Lube XPD and the Summer Blend, which have been praised for their ability to improve mileage and engine performance. For instance, one user reported a 1-2 mpg improvement when using Opti-Lube XPD. Additionally, Opti-Lube's Summer Blend is known for its cost-effectiveness. However, some users have found the cost of Opti-Lube products to be relatively high, and they may not provide noticeable benefits for all customers.
On the other hand, Hot Shots offers a range of diesel fuel additives, including EDT and Stiction Eliminator. Hot Shots' products are known for their effectiveness in keeping the injection system clean, which is crucial for preventing costly repairs. For example, fuel injectors can cost upwards of $5000 to replace, so using additives like Hot Shots can be seen as a form of insurance. Hot Shots' additives are also generally easy to use, with their squeeze bottle design making it convenient to measure out the correct amount.
When it comes to performance, both Opti-Lube and Hot Shots have their strengths. Opti-Lube XPD, in particular, has been recognised for its high lubricity rating. Meanwhile, Hot Shots' lab data shows improvements in fuel quality, with a reduction in the baseline fuel micron level from 620 to 430. This indicates that Hot Shots' additives can enhance fuel performance.
In terms of convenience, Hot Shots' off-the-shelf availability gives it an edge over Opti-Lube. Opti-Lube products may be more challenging to find, as one dealer mentioned discontinuing their supply due to high costs and a lack of noticeable benefits for their customers. However, Opti-Lube's Summer Blend is praised for its cost-effectiveness, so it may be a more economical option for those who can access it easily.
Ultimately, the choice between Opti-Lube and Hot Shots depends on individual preferences and specific engine requirements. Both brands have their unique advantages, and diesel engine owners may experiment with both to determine which one suits their needs best.
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Stanadyne Performance
The additive is easy to use and can be added during fuelling, making it convenient for users. It is suitable for a range of diesel engines, including those in trucks, tractors, and cars. One of its notable features is its ability to keep fuel pumps and injectors clean, which contributes to smoother engine operation and extended engine life.
Users have reported improvements in fuel mileage, with some witnessing increases in their average miles per gallon. For example, one user reported an average of 17.7 to 18.0 MPG on the highway, and even higher averages on certain trips. This increase in fuel efficiency not only improves the driving experience but also contributes to cost savings over time.
Overall, Stanadyne Performance Formula is a well-regarded diesel fuel additive that delivers on its promises. It is a trusted brand in the diesel community, known for manufacturing fuel injection parts and developing effective additives. With its positive impact on engine performance and fuel efficiency, it is a worthwhile investment for diesel vehicle owners seeking to optimise their engines' performance and longevity.
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Archoil 6400D Fuel System Cleaner
Archoil's AR6400-D Diesel Fuel System Cleaner is a highly concentrated detergent package designed to deep clean your diesel engine. It is suitable for use in all diesel vehicles and treats 40 gallons of diesel fuel with just one 12 oz bottle.
The product is formulated to remove carbon build-up from injectors and injector tips, ensuring correct spray patterns and restoring engine performance. It also removes carbon deposits from the turbo and DPF, reducing turbo lag and restoring boost. This, in turn, reduces excess heat and wear, preventing potential engine damage and failure.
Users of the product have reported improved engine responsiveness, smoother operation, better throttle response, and increased horsepower and torque. Some have also noted that their engines sound quieter while idling and overall. One user commented that their truck "was running like garbage!" before using the product, and after applying it, their truck started running again and was able to maintain 2000 RPM.
For optimal results, Archoil recommends using the AR6400-D Diesel Fuel System Cleaner every 5,000 miles, along with their AR6500 Diesel Treatment at every fill-up. The AR6500 additive boosts cetane, improves lubricity, and contains detergents to maintain fuel system performance.
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Yamalube 2R
The additive also fights the corrosive elements of sulfur in ethanol-blended fuels, helping to protect engine components from corrosion and degradation. This can help extend the life of engine components and improve overall engine durability.
Customers have reported positive experiences with Yamalube 2R, noting that it works well with Yamaha engines, particularly 4-stroke models. Some customers have also noted that the additive improved engine smoothness and increased power and fuel efficiency. However, opinions on value for money are mixed, with some finding it worth the price while others consider it pricey.
Overall, Yamalube 2R is a high-performance engine oil and additive that can help improve engine performance, smoothness, and longevity, especially for Yamaha engines. While some may find the price higher than expected, the benefits it offers can make it a worthwhile investment for those seeking to enhance and maintain their vehicle's performance.
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Power Service or Stanadyne
When it comes to diesel fuel additives, two of the most popular brands are Power Service and Stanadyne. Both products have their own unique advantages and have been shown to produce reasonable results for their targeted markets.
Power Service Diesel Fuel Supplement + Cetane Boost is a cost-effective option, typically priced at $6 or less for a 32oz bottle, which treats 100 gallons of fuel. It is widely available and easy to find, making it a convenient choice for many consumers. Power Service has been reported to improve mpg, especially during the summer months, and prevent gelling in cold weather conditions. However, some users have experienced gelling issues with Power Service at extremely low temperatures, such as -10°F.
On the other hand, Stanadyne is a more expensive option, costing around $8 for a 16oz bottle, which treats 60 gallons of fuel. It is the only GM-approved diesel supplement, along with Racor, and offers superior performance in several categories, including cetane boost, pour point reduction, and gel temp reduction. Stanadyne has been reported to provide a smoother engine performance and a slight improvement in mpg of around 1-2 mpg. However, it is important to note that Stanadyne is prone to freezing at 0°F, which can be a significant drawback in cold climates.
While both products have their pros and cons, the choice between Power Service and Stanadyne ultimately depends on individual preferences, climate conditions, and budget constraints. Some users prefer the convenience and cost-effectiveness of Power Service, while others prioritize the superior performance and smoother engine operation offered by Stanadyne. Conducting personal tests and comparing the results of different additives, as some users have done, can be a helpful way to determine which additive works best for your specific vehicle and requirements.
In conclusion, when deciding between Power Service and Stanadyne, it is essential to consider factors such as price, performance, availability, and climate conditions. Both products have their strengths and weaknesses, and the best choice depends on the specific needs and priorities of each diesel vehicle owner.
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Frequently asked questions
There is no clear consensus on which diesel fuel additive is the best. However, popular options include Hot Shots Secret, Opti-Lube, Stanadyne, Howes, and Diesel Kleen.
Some affordable options include Yamalube 2R and Hot Shots Secret.
Diesel fuel additives can improve engine performance, increase fuel lubricity, and reduce carbon build-up.
It is recommended to use a diesel fuel additive every time you fill up your vehicle, although some people use them less frequently or only when needed.
Some people use a small amount of biodiesel or biomass fuel as an alternative to diesel fuel additives to improve engine performance.
