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Message: <blockquote data-quote="E46Fanatic" data-source="post: 392543" data-attributes="member: 81">Seems like the sulphur in our fuel is more of a problem with the NOx fuel catalyst than the piezo injectors.  But strange thing is that BMW offers the N54 335i for Malaysian mkt and fuels but not the N53 6 pot engine.The sulphur content drops significantly between Euro II and Euro IV gasoline."With maximum output of 200 kW/272 hp and peak torque of 315 Newton-metres or 232 lb-ft, this is also the most powerful version so far of BMW’s 3.0-litre six-cylinder normal-aspiration engine. And on the road, this means two advantages in one: a further increase in engine dynamics and a new dimension in all-round economy.Clean and intelligent: NOx storage catalysts. BMW’s new straight-six power unit with High Precision Fuel Injection is being launched initially in the European markets. Then, with sulphur-free fuel becoming increasingly available also elsewhere as the prerequisite for the NOx storage catalyst technology featured in the engine, the new power unit will make its entry step-by-step into other markets.Yet a further advantage is that European customers will also be able to use their car in countries where sulphur-free fuel is not yet available everywhere. While in such cases the engine will not be able to offer its particular fuel economy in full, since in that case the storage catalyst will require regeneration more often than when running on fuel free of sulphur, there are no objections to running the engine also on fuel containing sulphur, when a European customer travels abroad."</blockquote>

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