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Why Both L99 & LS3?
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04-11-2009, 12:19 AM
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davidj
Drives: .
Join Date: Mar 2009
Location: Ventura, Ca
Posts: 327
Automatics use more fuel. So they use the L99 which has provisions for Active Fuel Management. This brings the automatic back into acceptable fuel consumption range. And for some reason the L99 ran better at the 400hp mark.
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