2007 Mazda MAZDA3 Owner's Manual - Page 111

Mazda3_8V66-EA-06F_Edition2 Page110 Friday, May 26 2006 10:53 AM Black plate (110,1) Before Driving Your Mazda Fuel and Engine Exhaust Precautions Fuel Requirements Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL, which will reduce exhaust emissions and keep spark plug fouling to a minimum. 2.3-liter turbocharger engine Your Mazda will perform best with fuel listed in the table. Fuel Premium unleaded fuel Octane Rating* (Anti-knock index) 91 [ (R+M)/2 method] or above (96 RON or above) * U.S. federal law requires that octane ratings be posted on gasoline station pumps. This vehicle is designed for and requires use of premium unleaded fuel. If 91 octane fuel [ (R+M)/2 method] (96RON) is not available, gasoline as low as 87 octane [ (R+M)/2 method] (91RON) can be used temporarily for emergency purposes. Use of gasoline lower than 91 octane [ (R+M)/2 method] (96RON) can decrease performance during its use. Refueling the vehicle with the correct octane fuel a couple of times will restore vehicle performance. Except 2.3-liter turbocharger engine Your Mazda will perform best with fuel listed in the table. Fuel Regular unleaded fuel Octane Rating* (Anti-knock index) 87 [ (R+M)/2 method] or above (91 RON or above) * U.S. federal law requires that octane ratings be posted on gasoline station pumps. Fuel with a rating lower than 87 octane (91 RON) could cause the emission control system to lose effectiveness. It could also cause engine knocking and serious engine damage. CAUTION l USE ONLY UNLEADED FUEL. Leaded fuel is harmful to the catalytic converter or the oxygen sensor. The lead will accumulate on the oxygen sensor and the catalyst inside the converter. This will result in a malfunction of the emission control system, causing poor performance. Your vehicle can only use oxygenated fuels containing no more than 10% ethanol by volume. Damage to your vehicle may occur when ethanol exceeds this recommendation, or if the gasoline contains any methanol. Stop using gasohol of any kind if your vehicle engine is performing poorly. Never add fuel system additives. Never add cleaning agents other than those specified by Mazda. Other cleaning agents and additives may damage the system. Consult an Authorized Mazda Dealer. l l 4-2 Form No.8V66-EA-06F