Main mistakes of drivers that reduce the lifespan of the catalytic muffler


The catalytic converter, an obligatory inclusion in contemporary gasoline-fueled vehicles, stands as a costly yet indispensable element tasked with diminishing the magnitude of detrimental emissions released into the atmosphere. However, its efficacy hinges on conscientious usage, and drivers’ inadvertent errors can drastically curtail its operational lifespan.

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A prominent example involves retaining outdated emission control devices—a decision fraught with repercussions. Opting to sell them through dedicated platforms like Autocatalystmarket not only side steps adverse environmental consequences but also affords drivers a chance to monetize their used components. Find out the chevy catalytic converter scrap price on Autocatalystmarket and maximize the profit from used parts.

Common Mistakes

Not only poor ceramic quality affects the catalytic muffler’s lifespan, but owners often reduce its lifespan unknowingly.

  • Firstly, the lifespan of the emission control device is shortened when refueling the car with low-quality fuel or fuel with a lower octane number. The car’s electronics are designed to operate on a specific type of gasoline, and refueling with low-octane fuel leads to improper engine operation, causing the temperature of the exhaust gasses to rise and the emission reduction device’s ceramic components to melt.
  • Using various additives is another mistake. Manufacturers claim that additives can double the engine’s lifespan, but it’s just a marketing tactic, and additives can harm the emission control device by clogging its cells and reducing its lifespan.
  • Failure to replace spark plugs on time leads to ignition misfires. In this mode, fuel does not fully burn in the cylinders and burns in the exhaust, causing the ceramic components of the catalytic converter to melt.
  • Mechanical damage is usually obtained by emission reduction devices located under the car. Impact against curbs or other irregularities can cause the emission control device to start deteriorating. This is particularly relevant for off-road drivers. Sharp temperature changes and driving through deep puddles can instantly reduce the vehicle exhaust catalyst’s lifespan and cause ceramic cracking.


A malfunction or obstruction in the converter poses a severe threat, potentially escalating to engine failure. This predicament may manifest in increased fuel consumption beyond the norm. In cases of emission control device blockage, there’s the ominous prospect of exhaust gases reverting to the cylinders, instigating a comprehensive breakdown of the piston system.

Vehicles surpassing the 100,000 km mark should err on the side of caution and subject their vehicle exhaust catalysts to scrutiny. While the assessment is not exorbitant, it serves as a prudent measure, potentially sparing owners from substantial expenditures on engine repairs.

Though self-cleaning is plausible in cases where it’s feasible, considering the non-repairable nature of the device, experts advocate for recycling the emission control device as a responsible course of action.