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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

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  #1  
Old 03-27-2014, 07:54 AM
BMWTurboDzl BMWTurboDzl is online now
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Mein Auto: 335D
SAE Paper 2009-01-2643

It's only $24 but basically they found that a high cetane number and low ambient gas temps produce lower amounts of soot.

This is interesting because it means EGR and higher cetane fuels may reduce soot loading onto the DPF.

Those with EGR blocked should have more frequent re-gens.

Thoughts?
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Old 03-29-2014, 09:58 PM
anE934fun anE934fun is offline
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Location: S.F. Bay Area
 
Join Date: May 2008
Posts: 6,718
Mein Auto: 2010 335d
Quote:
Originally Posted by BMWTurboDzl View Post
It's only $24 but basically they found that a high cetane number and low ambient gas temps produce lower amounts of soot.

This is interesting because it means EGR and higher cetane fuels may reduce soot loading onto the DPF.

Those with EGR blocked should have more frequent re-gens.

Thoughts?
In one of the threads, I theorized about high cetane level of CARB D2 resulting in an absence of coking in CA 335d cars. There were a few responses that offered examples of CA d owners having CBU. At this point, I am just hoping I don't have the CBU issue. If I do get it, then I hope either my extended warranty covers the repair, or in the alternative, the cost to clean the coking can be lowered to the ~$700 range.

I don't want to unload my d (fun/mpg score is too high), so I am basically resigned to CBU.
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