Thread: Lotus developing HCCI engine, claims 10% efficiency increase
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Old 03-31-2011, 11:47 PM   #14 (permalink)
gone-ot
...beats walking...
 
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...the GM-Allison XM-1 "tank" that went up against the Chrysler "turbine" XM-1 tank used a variable compression ratio diesel engine.

...both got about 1 MPG or 1GPM (take your pick).
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