Is the Three-Way Catalyst Cleaner Effective?
2 Answers
After using GUDIWAY Three-Way Catalyst Cleaner, I noticed that my car accelerates faster than before, and the idle speed is more stable without high RPM fluctuations. Additionally, I observed a reduction in fuel consumption, achieving 5.0L/100km on highways. Below are detailed explanations of its functions and effects: Function: Poor fuel quality in China with many impurities, along with long-term use of sulfur- and phosphorus-containing antioxidant engine oils, can easily lead to three-way catalyst clogging. Secondly, urban traffic congestion causes incomplete fuel combustion during frequent acceleration and deceleration, which over time can result in clogging. The direct consequences of a clogged three-way catalyst include shortened lifespan, failure to pass annual emissions tests, reduced power and slower acceleration, increasing fuel consumption, and in severe cases, even vehicle self-ignition. Effects: Simultaneously resolves excessive exhaust emissions, enhances power, reduces fuel consumption, removes carbon deposits, and extends the service life of the three-way catalyst.
I tried this cleaner on my old car last year, a 7-year-old Volkswagen 1.4T. Following the instructions, I added one bottle to the fuel tank every 5,000 kilometers and used it three times consecutively. At first, I didn't notice any difference, but after the third use, the throttle suddenly felt lighter during highway driving, and the pungent smell of the exhaust did seem to fade. However, my mechanic told me the real effectiveness should be judged by test data. Later, when the catalytic converter was removed, we found white crystalline residues in the grid, which actually affected heat dissipation. This stuff is like giving the engine health supplements—it works for minor carbon buildup, but if it's really clogged, you'll still need to dismantle and clean it. By the way, never buy the cheap stuff recommended by gas stations; it can corrode the sensors.
