2003 GMC Sierra 1500 MPG
Based on data from 65 vehicles, 5,188 fuel-ups and 1,469,288 miles of driving, the 2003 GMC Sierra 1500 gets a combined Avg MPG of 14.21 with a 0.08 MPG margin of error.
Below you can see a distribution of the fuel-ups with 265 outliers (4.86%) removed.
Following shows the average MPG of each of the 65 vehicles in the system.
2003 GMC Sierra 1500s For Sale Nearby
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My Sierra 1500
2003 GMC Sierra 1500 4.8L V8 GAS Automatic 4 Speed
Added Jul 2024 • 17 Fuel-upsProperty of j81647362
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15.6 Avg MPG
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2003 Sierra
2003 GMC Sierra 1500 WT 5.3L V8 GAS Automatic 4 Speed
Added May 2019 • 76 Fuel-upsProperty of jacmohr
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14.9 Avg MPG
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2003 GMC Sierra Z71
2003 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
Added Nov 2023 • 354 Fuel-upsProperty of ddaongam
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12.8 Avg MPG
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Norman
2003 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
Added Nov 2016 • 46 Fuel-upsProperty of BiannualPoet
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15.1 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 4.8L V8 GAS Automatic 4 Speed
Added Sep 2024 • 32 Fuel-upsProperty of luigi151
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16.9 Avg MPG
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Shela
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Standard Cab Pickup
Added Aug 2020 • 153 Fuel-upsProperty of Seriph
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15.7 Avg MPG
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Paw's Truck - GMC Sierra
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Standard Cab Pickup
Added Mar 2021 • 68 Fuel-upsProperty of JyRO
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17.1 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 4.3L V6 GAS Automatic 4 Speed
Added Dec 2018 • 146 Fuel-upsProperty of LockeCars
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13.6 Avg MPG
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GMC Sierra
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
Added Mar 2016 • 71 Fuel-upsProperty of jsstreet
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12.3 Avg MPG
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GMC Truck
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed Extended Cab Pickup
Added Dec 2024 • 13 Fuel-upsProperty of Sotomail
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15.7 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 4 Speed
Added Jun 2022 • 57 Fuel-upsProperty of scoot252
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15.0 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
Added Sep 2021 • 107 Fuel-upsProperty of burge
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14.8 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
Added Sep 2017 • 551 Fuel-upsProperty of thecellarseller
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15.3 Avg MPG
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2003 GMC
2003 GMC Sierra 1500 4.8L V8 GAS Automatic 4 Speed
Added Sep 2016 • 20 Fuel-upsProperty of hornerr2722
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24.1 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
Added Mar 2020 • 143 Fuel-upsProperty of killerkody
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17.0 Avg MPG
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2003 GMC Sierra Z71
2003 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed Extended Cab Pickup
Added Jan 2018 • 326 Fuel-upsProperty of ddaongam
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12.8 Avg MPG
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GMC 2003
2003 GMC Sierra 1500 SLE
Added Feb 2021 • 425 Fuel-upsProperty of HRan
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16.9 Avg MPG
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Denali
2003 GMC Sierra 1500 Denali 6.0L V8 GAS Automatic 4 Speed
Added Mar 2017 • 261 Fuel-upsProperty of Murray66
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12.2 Avg MPG
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My Sierra 1500
2003 GMC Sierra 1500 SLE 4.8L V8 GAS Automatic 4 Speed
Added Mar 2023 • 6 Fuel-upsProperty of Tysont
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24.0 Avg MPG
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GMC
2003 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 4 Speed
Added Jul 2018 • 414 Fuel-upsProperty of gwlayman
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16.2 Avg MPG