Quote:
Originally Posted by Penguin
I'm surprise no one has mentioned the diesel's SCR exhaust fluid injection system. This is rather new, and was introduced first for the U.S. market, e.g., no long term real life experience at all, unlike the basic diesel engine design where BMW has been selling many diesels in Europe for many years.
I expect that the newly-designed SCR system introduced for the first time with the U.S. diesel has the most risk for long-term problems vs. the V8.
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very true. But to play devils advocate, the diesel has cast iron cylinder liners and only simple angles on the timing chains (3). Not sure about the V8 per se, but most bimmer gas engines have nikasil/alusil coated cylinders (not as durable as iron) with the V8 having one long convoluted chain which may be more susceptible to stretch than a simple 2 pulley arrangement.
11-27-2011, 04:24 PM
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