PATENTED COMBUSTION TECHNOLOGY
Better Combustion Starts Here.
Rennsli develops and manufactures advanced fuel catalyst technology engineered to improve combustion efficiency, reduce emissions, and increase performance across commercial, industrial, and energy applications worldwide.
One Technology. Endless Applications.
Commercial Fleets
Improve fuel economy, reduce idle losses, and support emissions compliance across large vehicle fleets.
Mining & Heavy Equipment
Increase operational efficiency in high-load environments while reducing fuel consumption and maintenance events.
Agriculture
Help tractors, generators, pumps, and agricultural equipment operate more efficiently through improved combustion.
Power Generation
Optimize generator and backup power systems with cleaner and more complete fuel burn characteristics.
Marine
Support commercial and recreational marine operations with improved combustion performance across diesel applications.
Energy & LPG
Improve combustion efficiency in propane, natural gas, and industrial burner systems.
Government & Municipal
Reduce operating costs and emissions across public works, emergency services, and utility fleets.
Motorsports & Performance
Provide measurable combustion improvements in high-performance applications where every percentage matters.
Improving Combustion at the Molecular Level.
Ferox introduces a highly concentrated combustion catalyst into the fuel system. As the treated fuel reaches the combustion chamber, the catalyst helps promote a faster, more complete burn—allowing more of the fuel's stored energy to be converted into usable power.
Fuel Treatment
Ferox dissolves into the fuel and distributes a microscopic concentration of catalytic material throughout the tank.
Catalyst Delivery
The catalyst moves with the fuel through the normal delivery system without changing how the engine is operated.
Enhanced Combustion
Inside the combustion chamber, Ferox helps accelerate and stabilize the combustion reaction, supporting a more complete and uniform burn.
More Useful Energy
A more complete burn can convert more of the fuel's available energy into usable work while reducing wasted fuel and combustion byproducts.
More Complete Combustion
Helps reduce unburned fuel during the combustion cycle.
Improved Energy Conversion
Supports greater use of the energy already present in the fuel.
Cleaner Engine Operation
Can help reduce carbon buildup and combustion-related deposits over time.
Results vary by fuel type, engine condition, duty cycle, operating environment, and testing methodology.
Validated in Real-World Operations
FedEx Ground Contractors
Open-Pit Mining Operations
Solgas
Lincoln County Fire Department
Why Rennsli Corp?
Patented Technology
Proprietary catalyst formulation with multiple patents protecting core innovations in combustion optimization and emissions reduction.
Manufacturing Excellence
Certified production facilities ensuring consistent quality and performance across all product batches with rigorous testing protocols.
Commercial Validation
Proven performance across diverse industrial applications with documented results from fleet operators and OEM partnerships.
Scalable Platform
Modular technology architecture enabling rapid deployment across multiple engine types and fuel systems with minimal integration complexity.
Continuous Innovation
Ongoing R&D investment driving next-generation catalyst formulations and expanding application capabilities for emerging fuel technologies.
Partner with Rennsli Corp
Commercial Fleets
Reduce operating costs and emissions across transportation fleets with proven catalyst technology integration.
Fuel Distributors
Enhance fuel performance offerings with patented combustion optimization technology for commercial customers.
Industrial Operators
Optimize combustion efficiency in manufacturing, mining, and heavy industrial applications with scalable solutions.
Energy Providers
Deploy advanced catalyst technology to improve generation efficiency and reduce environmental impact.
OEM Manufacturers
Integrate combustion catalyst technology into equipment design for enhanced performance and compliance.
Research Organizations
Collaborate on combustion science research and validation studies with our technology platform.