Quote:
Originally Posted by happycamper
LS3 V8 - 24.4mpg (mostly highway) AVG mph = 42.6
my previous 2LT would have shown ~26.5mpg for the same driving.
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16 MPG in the city doing the speed limit in stop and go traffic (L99).
23.5 on the highway at 75 mph cruise control (L99).
my v6 got 19 in the city and MAYBE 26 on the highway IF i drove under 65/70mph.