Quote:
Originally Posted by Tom K.
The gearing differences for the 128i Auto & MT are:
1st: + 8% for the Auto
2nd:+10% for the Auto
3rd: + 7% for the Auto
4nd:+ 8% for the Auto
5th: - 2% for the Auto
6th:-10% for the Auto
Plus the torque converter gearing advantage, especially in the lower gears.
So the Auto gets a lot of ratio help in the lower gears for acceleration and in 6th for fuel economy. 5th (direct drive in the MT) is about equal - and overall, the MT is a closer ratio box than the Auto.
Tom
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Your numbers include the 15% difference in the axle ratio (3.23 MT vs 3.73 AT), right?