Catalytic converterCatalytic converter  - Starting and driving - Mitsubishi Carisma Owner's Manual - Mitsubishi Carisma

For ordinary use, there are no particular precautions except that of using unleaded

For ordinary use, there are no particular precautions except that of using unleaded petrol.

The exhaust gas scavenging device with catalytic converter is extremely efficient for the reduction of noxious gases. The catalytic converter is installed in the exhaust system. It is important to keep the engine properly tuned to ensure proper catalyst operation and prevent possible catalyst damage.

CAUTION

Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the event of an engine malfunction particularly involving engine misfire or other apparent loss of performance have your vehicle serviced promptly. Continued operation of your vehicle with a severe overheated condition may result in possible damage to the converter and vehicle.

WARNING

(1) As with any vehicle, do not park or operate this vehicle in areas where combustible materials such as dry grass or leaves can come into contact with a hot exhaust since a fire could occur.
(2) Undercoating paint should not be applied to the catalytic converter.

The catalytic converter itself gets hot quickly, and may be damaged if overheated. The following points should be noted in order to prevent the ignition of unburned petrol within the catalytic converter.

(1) In case of the petrol-powered vehicles, use UNLEADED PETROL ONLY of the type of recommended in “Fuel usage” on page 5–3.
(2) Do not drive with an extremely low fuel level; running out of fuel could cause damage to the catalytic converter.
(3) Do not switch OFF the ignition switch while driving.
(4) Do not try to start the engine by pushing the vehicle. If the battery is weak or discharged, use another battery to start the engine.
(5) In case of the petrol-powered vehicles, do not idle the engine with any spark plug wires disconnected or removed such as performing diagnostic tests.
(6) Do not idle the engine for prolonged periods during very rough idle or malfunctioning operating conditions.
(7) Do not race the engine when turning off the ignition switch. This will prevent the catalytic converter from being damaged due to unburnt fuel.
(8) Stop driving the vehicle if you think the performance is noticeably low, or that there is unnecessary engine rotation or any other engine trouble, such as with the ignition, etc.
If it is impractical to stop driving immediately, reduce the speed and drive for only a short time. Have an inspection made by your nearest authorized MITSUBISHI dealer as soon as possible.
(9) In unusual situations involving grossly malfunctioning engine operation, a burnt smell may indicate severe and abnormal catalyst overheating.
If this occurs, the vehicle should be stopped in a safe place, the engine switched off and the vehicle allowed to cool. Once the engine is cool, a service, including a tune-up to manufacturer’s specifications, should be obtained immediately.

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