See also:

Three-way catalytic converter
• Keep your engine properly tuned. Certain engine malfunctions, particularly involving the electrical, fuel or distributor ignition systems, may cause unusually high threeway catalytic convert ...

Driving Impressions
Even when equipped with the automatic transmission, the S40 2.4i accelerates with spirit, though the engine growls when pushed. Despite a taut suspension, ride comfort is generally satisfactory, b ...

Methanol
Do not use gasolines containing methanol (methyl alcohol, wood alcohol). This practice can result in vehicle performance deterioration and can damage critical parts in the fuel system. Such damage ...