1977 GMC K15 MPG
Based on data from 2 vehicles, 24 fuel-ups and 3,187 miles of driving, the 1977 GMC K15 gets a combined Avg MPG of 10.48 with a 0.82 MPG margin of error.
Below you can see a distribution of the fuel-ups with 1 outliers (4.00%) removed.
Following shows the average MPG of each of the 2 vehicles in the system.
1977 GMC K15s For Sale Nearby
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GMC
1977 GMC K15 High Sierra 6.6L V8 GAS Automatic 3 Speed
Added Sep 2017 • 23 Fuel-upsProperty of Randalpho
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11.2 Avg MPG
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Sierra
1977 GMC K15 5.7L V8 GAS Standard 3 Speed
Added Jan 2018 • 5 Fuel-upsProperty of kball
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8.7 Avg MPG