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Re: High NOX emissions: What are we gonna do? (archive)
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Posted by Bob on December 21, 1999 at 21:18:56:

In Reply to: High NOX emissions: What are we gonna do? posted by Pierre on December 21, 1999 at 09:52:31:

: As I cannot get my euro 635 (with CAT) thru the 2 speed VA emissions because of the high nitrogen oxides (NOX), I am hearing evermore stories about older Bimmers with the M30 big sixes and M10 4 cyls blowing too high NOX at lower rpms (less than 1500).
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NO is formed at high combustion temperatures.

Try running 10-15% ethanol in your fuel. The mixture burns cooler and cleaner, and will reduce CO as well as NO emmissions. Retarding the spark is good, too, as long as it is not a Motronic car.

Bob

Bob

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