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Originally Posted by middlegati  which dif would you say gives the best mpg?/( doesnt need to be the best but close) but still great for driving( not speed racer, but comfy) |
That really depends on the type of driving you do most. You can always make a safe bet that the ratios BMW used in similar set ups will be the best all around solution. 3:08, 3:15, and 3:23