Q: What should I do to protect the three way catalytic converter?

asked by on December 15, 2015

What should I do to protect the three way catalytic converter?

Your car’s catalytic converter (or converters, as the case may be) is a critical component of your exhaust and emissions systems. It’s responsible for burning off harmful gases that lead to environmental damage and smog production. If your converter is damaged, not only will you not pass emissions testing, but you’ll experience reduced fuel economy and other performance problems. Thankfully, there are simple things you can do to protect it. Here’s what you need to know:

  • Never use anything but unleaded gasoline. While leaded gasoline is incredibly rare in the US, even a small amount will contaminate the cat.

  • Pay attention to maintenance. The better your engine is maintained, the less chance there is of damage to the converter.

  • Get professional help when needed. If you’re experiencing performance problems with the engine, have it professionally inspected.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

How can I avoid carbon monoxide poisoning?

Your vehicle’s exhaust system creates a mixture that contains carbon monoxide, which is highly dangerous if consumed. Your vehicle is designed to not allow carbon monoxide into the cabin, but small amounts can enter the vehicle in certain scenarios. If...

How do I change the Trip A or Trip B reset trigger?

Your vehicle has two trip settings, which measure how far you have driven since the last reset. Each trip meter can be programmed to reset when you refuel, when you turn the vehicle off, or when you manually reset. To...

Loud knocking sound when engine is running

Internal engine components each have their own signature noise. An experienced technician can often get a good idea of what is causing a knock by listening to the sound. A connecting rod bearing usually sounds off when you rev the...

Related articles

2012 Honda Civic vs. 2012 Ford Focus: Which One Should I Buy?
One of the best ways to cope with pain at the gas pump is to look at downsizing your vehicle, and today’s compact cars are a great option that allow you to keep the space that you need to move...
A Buyer’s Guide to the 2012 Honda Civic Hybrid
With With more and more consumers looking for better fuel efficiency, hybrid cars are taking off in ways that most of us never thought possible. Today, America’s top-selling compact car, the Honda Civic, is offered in a hybrid model with...
A Buyer's Guide to the 2012 Mazda CX-7
If If you want an SUV, but don’t care as much about the “utility” part as you do the “sport” features, you should take a look at what the 2012 Mazda CX-7 has to offer. Key Features With a turbo...