2008 Honda Odyssey Owner's Manual - Page 500

Main Menu Table Of Contents Three Way Catalytic Converter The three way catalytic converters contain precious metals that serve as catalysts, promoting chemical reactions to convert the exhaust gasses without affecting the metals. The catalytic converters are referred to as three-way catalysts, since they act on HC, CO, and NOx. Replacement units must be original Honda parts or their equivalent. The three way catalytic converter must operate at a high temperature for the chemical reactions to take place. It can set on fire any combustible materials that come near it. Park your vehicle away from high grass, dry leaves, or other flammables. THREE WAY CATALYTIC CONVERTER A defective three way catalytic converter contributes to air pollution, and can impair your engine's performance. Follow these guidelines to protect your vehicle's three way catalytic converter. Always use unleaded gasoline. Even a small amount of leaded gasoline can contaminate the catalyst metals, making the three way catalytic converter ineffective. Keep the engine well maintained. Have your vehicle diagnosed and repaired if it is misfiring, backfiring, stalling, or otherwise not running properly. Technical Information WARM UP THREE WAY CATALYTIC CONVERTERS 497 2008 Odyssey