American Petroleum Institute (API) Certification
DEFendal® Diesel Exhaust Fluid is formally approved by the American Petroleum Institute (API). This means that the fluid can be used for all diesel engines that utilize Selective Catalytic Reduction (SCR) technology. DEFendal Diesel Exhaust Fluid has been through all the rigorous tests by the API. For SCR units to operate properly, an API approved fluid will be specified by the original equipment manager (OEM). DEFendal Diesel Exhaust Fluid meets all the performance standards published by the International Organization for Standardization (ISO) as a part of this formal approval process. It is always recommended that customers only use API approved fluids.
The API logo helps the average consumer properly identify a fluid that meets all of the OEM requirements, and easily locate those fluids. DEFendal Diesel Exhaust Fluid is formally API approved and available nationwide.