REDEX DIESEL SYSTEM CLEANER REVIEW MAZDA CX-5 II (KF) (11.2016 - ...)

Users' feedback and product information suggest the following about Redex Diesel System Cleaner for a 2018 Mazda CX-5 and similar diesel vehicles:

- Fuel Efficiency and Engine Performance: Some user tests (including a video review) found no significant improvement in miles per gallon (fuel economy) or engine responsiveness after using Redex Diesel System Cleaner on their diesel vehicles. The improvements might be subtle or dependent on the current condition of the engine; if the engine is already clean, the additive primarily helps maintain it rather than enhancing visible performance. However, the manufacturer claims it helps clean fuel injectors, pumps, and combustion chambers, which should enhance combustion efficiency, potentially benefiting fuel economy and performance over time.-
Emissions Reduction: Redex Diesel System Cleaner promotes more complete combustion by cleaning deposits that cause inefficient fuel burning. This can reduce exhaust smoke and lower particulate matter and unburned hydrocarbons, thus helping to lower harmful emissions. It can contribute to keeping emission levels within regulatory standards.
- DPF (Diesel Particulate Filter) Cleaning: Redex offers a specialized DPF cleaner product separate from the system cleaner. The DPF cleaner contains a nano-metal oxide catalyst that lowers the temperature at which soot burns, aiding in more efficient soot removal from the particulate filter during normal driving. This can prevent or clear DPF blockages without requiring extended high-temperature driving sessions. The diesel system cleaner itself is more focused on fuel system cleaning, so for DPF specifically, the dedicated product is recommended.
- Usage Recommendations: For best results, Redex system cleaner is ideally used regularly as preventive maintenance, in every tank, alongside regular oil changes and proper fueling. The DPF cleaner can be used periodically or if a blockage warning light appears.

In summary, while some individual users may not notice immediate fuel economy or performance gains with Redex Diesel System Cleaner, the product plays a preventative role in maintaining clean fuel systems, which supports consistent engine operation, emissions control, and potentially extends engine longevity. For DPF-related issues, use the dedicated Redex DPF Cleaner product. This approach aligns with typical experiences for diesel fuel additives in modern vehicles like your 2018 Mazda CX-5.