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Re: 3.91 vs 3.72 gear ratio (archive)
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Posted by Anand on January 02, 2002 at 21:03:51:

In Reply to: 3.91 vs 3.72 gear ratio posted by mike wong on January 01, 2002 at 17:17:56:


I would guess that BMW did it to increase fuel economy in the US for the late 92 and 93 cars (I think the EPA rating went up 2-3mpg with the 3.73 vs the 3.91). The rest of the world got the 3.91 for all years, both 3.6ltr and 3.8ltr, until the 6-speed was introduced in 1995.
Anand

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