Is the LLY Duramax 6600 a catalytic converter?
The LLY got a new catalytic converter design for 2004 that is the same size as those used on the LB7, but the quantities of precious metals and resulting effectiveness have increased. I was encouraged to learn last year that GM had been running 2007 emissions qualified prototype Duramax 6600 diesels for quite some time.
What kind of catalytic converter does a LLY engine use?
The California LB7 and all LLY engines are equipped with catalytic converters, designed to trap and vaporize PM (soot) expelled by the engine. The LLY got a new catalytic converter design for 2004 that is the same size as those used on the LB7, but the quantities of precious metals and resulting effectiveness have increased.
Are there any issues with the LLY engine?
The commanding issue most LLY owners worry about is this engine’s tendency to overheat, especially when towing. In reality, not all trucks overheat, but it’s a common enough problem that it gets a considerable amount of negative attention.
How does the LLY Duramax 6600 reduce emissions?
Meeting the proposed 2007 emissions limits (specifically particulates – PM & oxides of Nitrogen – NOx) means reducing the current 2004 emissions by a factor of ten (current 0.1 g/bhp-hr particulates to 0.01 g/bhp-hr). As an aside, the LLY is said to reduce both NOx and hydrocarbons by 90%, when compared to the LB7 – a remarkable feat.
The California LB7 and all LLY engines are equipped with catalytic converters, designed to trap and vaporize PM (soot) expelled by the engine. The LLY got a new catalytic converter design for 2004 that is the same size as those used on the LB7, but the quantities of precious metals and resulting effectiveness have increased.
The LLY got a new catalytic converter design for 2004 that is the same size as those used on the LB7, but the quantities of precious metals and resulting effectiveness have increased. I was encouraged to learn last year that GM had been running 2007 emissions qualified prototype Duramax 6600 diesels for quite some time.
The commanding issue most LLY owners worry about is this engine’s tendency to overheat, especially when towing. In reality, not all trucks overheat, but it’s a common enough problem that it gets a considerable amount of negative attention.
Meeting the proposed 2007 emissions limits (specifically particulates – PM & oxides of Nitrogen – NOx) means reducing the current 2004 emissions by a factor of ten (current 0.1 g/bhp-hr particulates to 0.01 g/bhp-hr). As an aside, the LLY is said to reduce both NOx and hydrocarbons by 90%, when compared to the LB7 – a remarkable feat.