Hot Shot’s Secret Launches Diesel Exhaust Additive
The new Premium DEFender additive aims to prevent crystallization in diesel selective catalytic reduction systems.
Updated on Oct. 16, 2026 in Trucks
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Hot Shot’s Secret has introduced Premium DEFender, a chemical additive formulated to prevent crystallization buildup in diesel exhaust fluid systems. The product is designed to clean and protect selective catalytic reduction components, ensuring proper fluid spray patterns for diesel engines.
Why it matters
Crystallization in exhaust fluid injectors and lines often causes engine fault codes and system derates. By addressing this buildup, the additive helps diesel owners avoid costly repairs and unexpected vehicle downtime.
One 16-ounce bottle provides treatment for up to 40 gallons of diesel exhaust fluid. The manufacturer recommends a dosage rate of 1 ounce for every 2.5 gallons of fluid added to the system.
The players
Hot Shot's Secret
Hot Shot's Secret is an automotive company that specializes in manufacturing performance additives and oils for diesel engines.
The details
The additive is engineered to be compatible with all brands of diesel exhaust fluid, making it a universal maintenance solution for engines equipped with selective catalytic reduction technology. By keeping injectors and lines clean, the product restores spray efficiency and maintains emissions system performance.
Timeline
October 16, 2026: Product availability announced.
Roadmap
This launch reflects the ongoing industry trend toward specialized maintenance additives designed to extend the lifespan of complex modern emissions controls. By targeting specific failure points in selective catalytic reduction systems, the product helps owners manage the increasing maintenance demands of high-efficiency diesel engines.
Diesel owners can use this additive as a preventative measure to reduce the frequency of system fault codes and potential emergency repairs. It offers a standardized maintenance routine that integrates with existing diesel exhaust fluid top-offs, potentially lowering long-term maintenance costs.
The takeaway
Using maintenance additives can proactively mitigate the risks associated with fluid crystallization in modern diesel engines. Drivers should follow the manufacturer's recommended dosage of one ounce per 2.5 gallons to ensure optimal system performance and protection.
Further reading
For more information on vehicle maintenance and parts, visit the Trucks section.
Source note: This article includes information reported by FleetOwner.
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