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Old 11-26-2013, 09:36 PM   #8 (permalink)
ksa8907
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
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Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
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Quote:
Originally Posted by aerohead View Post
According to published findings by SAE,an automobile is not fully warmed up until after 22-miles of continuous operation at 50-mph.Only then can you BEGIN testing.
This.

I've been keeping an eye on my fuel usage per hour at idle, and I don't drop to regular summer usage until after 15 min of coolant being 190+. Engine oil temp is my suspect.
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