Posted by Jon Hagen on November 20, 2011 at 09:02:10 from (69.26.23.96):
In Reply to: Who cares? posted by LJD on November 20, 2011 at 04:41:08:
This from your first post, aparently the experimental GM engine uses spark plugs too under certain conditions.
"They can drive at up to roughly 55 miles per hour using diesel-like ignition but will have to rely on traditional spark ignition at higher speeds or under heavy loads, GM said."
I wonder why compression ignition of gasoline would only work at low speed and light load ? possibly the low cetane number of regular gas ?
It's an interesting concept if they can make it work.
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