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Chevrolet Impala vs. GMC Sierra 1500 MPG

Chart is based on 142 fuel economy reports for the Chevrolet Impala and 526 fuel economy reports for the GMC Sierra 1500.

Chevrolet Impala MPG

Chevrolet Impala Chevrolet Impala 2014 13.4 MPG Highway Percentage 15 percent Chevrolet Impala Chevrolet Impala 2014 29.5 MPG Highway Percentage 98 percent Chevrolet Impala Chevrolet Impala 2013 26.0 MPG Highway Percentage 90 percent Chevrolet Impala Chevrolet Impala 2012 24.5 MPG Highway Percentage 45 percent Chevrolet Impala Chevrolet Impala 2011 27.4 MPG Highway Percentage 46 percent Chevrolet Impala Chevrolet Impala 2010 32.0 MPG Highway Percentage 98 percent Chevrolet Impala Chevrolet Impala 2009 26.4 MPG Highway Percentage 81 percent Chevrolet Impala Chevrolet Impala 2009 23.6 MPG Highway Percentage 74 percent Chevrolet Impala Chevrolet Impala 2008 25.9 MPG Highway Percentage 83 percent Chevrolet Impala Chevrolet Impala 2008 26.2 MPG Highway Percentage 47 percent Chevrolet Impala Chevrolet Impala 2007 26.1 MPG Highway Percentage 76 percent Chevrolet Impala Chevrolet Impala 2007 25.9 MPG Highway Percentage 61 percent Chevrolet Impala Chevrolet Impala 2006 17.4 MPG Highway Percentage 34 percent Chevrolet Impala Chevrolet Impala 2006 20.5 MPG Highway Percentage 35 percent Chevrolet Impala Chevrolet Impala 2006 24.1 MPG Highway Percentage 47 percent Chevrolet Impala Chevrolet Impala 2006 22.9 MPG Highway Percentage 50 percent Chevrolet Impala Chevrolet Impala 2005 20.0 MPG Highway Percentage 10 percent Chevrolet Impala Chevrolet Impala 2005 23.5 MPG Highway Percentage 8 percent Chevrolet Impala Chevrolet Impala 2004 31.0 MPG Highway Percentage 30 percent Chevrolet Impala Chevrolet Impala 2004 27.4 MPG Highway Percentage 78 percent Chevrolet Impala Chevrolet Impala 2004 22.0 MPG Highway Percentage 37 percent Chevrolet Impala Chevrolet Impala 2003 24.2 MPG Highway Percentage 46 percent Chevrolet Impala Chevrolet Impala 2003 16.0 MPG Highway Percentage 30 percent Chevrolet Impala Chevrolet Impala 2002 22.9 MPG Highway Percentage 46 percent Chevrolet Impala Chevrolet Impala 2002 26.7 MPG Highway Percentage 57 percent Chevrolet Impala Chevrolet Impala 2001 28.5 MPG Highway Percentage 27 percent Chevrolet Impala Chevrolet Impala 2001 28.0 MPG Highway Percentage 88 percent Chevrolet Impala Chevrolet Impala 2000 24.1 MPG Highway Percentage 20 percent Chevrolet Impala Chevrolet Impala 2000 24.0 MPG Highway Percentage 90 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2014 4dr Sedan 305-horsepower 3.6L V6
6-speed shiftable automatic FWD		 flat med none 20 30 35 15 55 13.4  
2014 4dr Sedan 195-horsepower 2.5L I4
6-speed shiftable automatic FWD		 flat med light 0 0 2 98 75 29.5  
2013 4dr Sedan 300-horsepower 3.6L V6
6-speed automatic FWD		 flat med light 0 1 9 90 65 26.0  
2012 4dr Sedan 300-horsepower 3.6L V6
6-speed automatic FWD		 flat med hvy 0 6 49 45 71 24.5  
2011 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light none 6 16 32 46 65 27.4  
2010 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light light 0 0 2 98 70 32.0  
2009 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 flat med light 3 1 15 81 77 26.4  
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2009 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 hills lead light 9 12 6 74 77 23.6  
2008 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 flat light none 0 3 13 83 75 25.9  
2008 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light light 5 17 31 47 64 26.2  
2007 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 flat med light 3 13 9 76 68 26.1  
2007 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light none 4 24 11 61 82 25.9  
2006 4dr Sedan 303-horsepower 5.3L V8
4-speed automatic FWD		 flat med none 10 27 28 34 67 17.4  
2006 4dr Sedan 242-horsepower 3.9L V6
4-speed automatic FWD		 flat med none 14 37 15 35 76 20.5  
2006 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light none 14 21 18 47 69 24.1  
2006 2dr Coupe 211-horsepower 3.5L V6
4-speed automatic FWD		 flat light light 1 39 10 50 60 22.9  
2005 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 hills light light 30 40 20 10 65 20.0  
2005 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 flat med light 4 18 71 8 73 23.5  
2004 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD		 flat med light 2 18 50 30 60 31.0  
2004 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med none 0 3 18 78 75 27.4  
2004 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 hills med hvy 9 28 27 37 65 22.0  
2003 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat med light 8 18 28 46 70 24.2  
2003 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 flat med light 30 40 0 30 60 16.0  
2002 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light light 5 28 21 46 83 22.9  
2002 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 flat light light 4 14 25 57 62 26.7  
2001 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 23 24 26 27 60 28.5  
2001 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 flat light none 0 12 0 88 70 28.0  
2000 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 flat light none 20 20 40 20 60 24.1  
2000 4dr Sedan 180-horsepower 3.4L V6
4-speed automatic FWD		 flat med none 0 5 5 90 100 24.0  

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This page shows only averages. See all the Chevrolet Impala fuel economy data.

GMC Sierra 1500 MPG

GMC Sierra 1500 GMC Sierra 1500 2021 24.5 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2018 22.0 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2015 20.9 MPG Highway Percentage 95 percent GMC Sierra 1500 GMC Sierra 1500 2015 18.7 MPG Highway Percentage 55 percent GMC Sierra 1500 GMC Sierra 1500 2014 18.9 MPG Highway Percentage 75 percent GMC Sierra 1500 GMC Sierra 1500 2014 25.0 MPG Highway Percentage 85 percent GMC Sierra 1500 GMC Sierra 1500 2011 16.5 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2011 18.3 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2011 15.2 MPG Highway Percentage 37 percent GMC Sierra 1500 GMC Sierra 1500 2010 15.8 MPG Highway Percentage 40 percent GMC Sierra 1500 GMC Sierra 1500 2010 18.5 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2010 18.0 MPG Highway Percentage 81 percent GMC Sierra 1500 GMC Sierra 1500 2009 17.3 MPG Highway Percentage 68 percent GMC Sierra 1500 GMC Sierra 1500 2009 15.4 MPG Highway Percentage 15 percent GMC Sierra 1500 GMC Sierra 1500 2009 16.8 MPG Highway Percentage 100 percent GMC Sierra 1500 GMC Sierra 1500 2009 17.9 MPG Highway Percentage 47 percent GMC Sierra 1500 GMC Sierra 1500 2008 20.3 MPG Highway Percentage 90 percent GMC Sierra 1500 GMC Sierra 1500 2008 17.0 MPG Highway Percentage 34 percent GMC Sierra 1500 GMC Sierra 1500 2008 17.0 MPG Highway Percentage 42 percent GMC Sierra 1500 GMC Sierra 1500 2008 17.9 MPG Highway Percentage 64 percent GMC Sierra 1500 GMC Sierra 1500 2008 14.0 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2008 22.0 MPG Highway Percentage 90 percent GMC Sierra 1500 GMC Sierra 1500 2008 19.5 MPG Highway Percentage 75 percent GMC Sierra 1500 GMC Sierra 1500 2007 14.1 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2007 17.7 MPG Highway Percentage 27 percent GMC Sierra 1500 GMC Sierra 1500 2007 14.1 MPG Highway Percentage 43 percent GMC Sierra 1500 GMC Sierra 1500 2007 18.1 MPG Highway Percentage 59 percent GMC Sierra 1500 GMC Sierra 1500 2007 16.5 MPG Highway Percentage 74 percent GMC Sierra 1500 GMC Sierra 1500 2007 18.1 MPG Highway Percentage 15 percent GMC Sierra 1500 GMC Sierra 1500 2007 18.4 MPG Highway Percentage 77 percent GMC Sierra 1500 GMC Sierra 1500 2007 16.7 MPG Highway Percentage 30 percent GMC Sierra 1500 GMC Sierra 1500 2006 14.7 MPG Highway Percentage 30 percent GMC Sierra 1500 GMC Sierra 1500 2006 18.5 MPG Highway Percentage 25 percent GMC Sierra 1500 GMC Sierra 1500 2006 15.3 MPG Highway Percentage 25 percent GMC Sierra 1500 GMC Sierra 1500 2006 16.8 MPG Highway Percentage 8 percent GMC Sierra 1500 GMC Sierra 1500 2005 16.0 MPG Highway Percentage 69 percent GMC Sierra 1500 GMC Sierra 1500 2005 17.5 MPG Highway Percentage 0 percent GMC Sierra 1500 GMC Sierra 1500 2005 17.4 MPG Highway Percentage 100 percent GMC Sierra 1500 GMC Sierra 1500 2005 16.2 MPG Highway Percentage 81 percent GMC Sierra 1500 GMC Sierra 1500 2005 19.5 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2003 17.3 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2003 12.5 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2003 16.8 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2001 14.9 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2001 77.8 MPG Highway Percentage 60 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2021 4dr Crew Cab 6ft bed turbocharged 277hp 3.0L V6 Diesel
10-speed shiftable automatic 4WD w/low range		 flat light light 0 25 25 50 70 24.5  
2018 4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8
8-speed shiftable automatic 4WD w/low range		 flat light light 0 5 15 80 70 22.0  
2015 4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8
8-speed shiftable automatic 4WD w/low range		 flat med light 0 5 0 95 65 20.9  
2015 2dr Regular Cab 6.5ft bed 355-horsepower 5.3L V8
6-speed shiftable automatic 4WD w/low range		 flat med none 8 38 0 55 118 18.7  
2014 4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8
6-speed shiftable automatic 4WD w/low range		 hills med none 0 0 25 75 75 18.9  
2014 4dr Crew Cab 5.5ft bed 355-horsepower 5.3L V8
6-speed shiftable automatic RWD		 flat light hvy 5 10 0 85 63 25.0  
2011 4dr Extended Cab 6.5ft bed 403-horsepower 6.2L V8
6-speed shiftable automatic RWD		 flat med light 5 10 25 60 75 16.5  
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2011 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
6-speed shiftable automatic RWD		 flat med hvy 5 0 25 70 60 18.3  
2011 4dr Extended Cab 6.5ft bed 302-horsepower 4.8L V8
4-speed automatic 4WD, part-time w/low range		 hills light none 3 18 42 37 70 15.2  
2010 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
6-speed shiftable automatic 4WD w/low range		 flat light light 10 35 15 40 71 15.8  
2010 4dr Crew Cab 5.5ft bed 403-horsepower 6.2L V8
6-speed shiftable automatic AWD		 hills med light 0 25 25 50 60 18.5  
2010 2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 18 1 0 81 68 18.0  
2009 4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8
6-speed shiftable automatic 4WD w/low range		 flat med none 3 8 23 68 63 17.3  
2009 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD, part-time w/low range		 hills med none 5 80 0 15 75 15.4  
2009 4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8
6-speed shiftable automatic 4WD w/low range		 flat light hvy 0 0 0 100 110 16.8  
2009 4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8
6-speed shiftable automatic 4WD w/low range		 flat light light 8 28 17 47 65 17.9  
2008 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 0 10 0 90 100 20.3  
2008 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 hills light light 17 22 27 34 60 17.0  
2008 4dr Extended Cab 5.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 hills light light 0 33 25 42 70 17.0  
2008 4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat light none 9 0 27 64 60 17.9  
2008 4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8
4-speed automatic 4WD, part-time w/low range		 hills lead none 18 0 33 50 115 14.0  
2008 2dr Regular Cab 8ft bed 295-horsepower 4.8L V8
4-speed automatic RWD		 flat light light 0 0 10 90 65 22.0  
2008 2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6
4-speed automatic RWD		 flat light none 5 10 10 75 60 19.5  
2007 4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8
4-speed automatic 4WD w/low range		 hills light light 0 10 10 80 60 14.1  
2007 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 12 37 25 27 75 17.7  
2007 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat med light 5 0 53 43 70 14.1  
2007 4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8
4-speed automatic RWD		 flat med light 5 30 7 59 70 18.1  
2007 4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8
4-speed automatic 4WD w/low range		 flat med none 23 3 0 74 75 16.5  
2007 4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD, part-time w/low range		 flat light light 10 30 45 15 60 18.1  
2007 4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat light none 4 10 9 77 66 18.4  
2007 4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 5 65 0 30 60 16.7  
2006 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat light none 30 20 20 30 100 14.7  
2006 4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 10 40 25 25 65 18.5  
2006 4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8
4-speed automatic AWD		 flat med none 5 20 50 25 65 15.3  
2006 4dr Crew Cab 5.5ft bed 310-horsepower 5.3L V8
4-speed automatic 4WD, part-time w/low range		 flat light none 2 80 10 8 70 16.8  
2005 4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat light light 7 11 13 69 62 16.0  
2005 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat med hvy 4 8 88 0 N/A 17.5  
2005 4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8
4-speed automatic 4WD w/low range		 flat light light 0 0 0 100 110 17.4  
2005 4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 hills light light 0 10 10 81 68 16.2  
2005 2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8
4-speed automatic RWD		 flat med hvy 0 2 18 80 65 19.5  
2003 4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 13 13 13 60 60 17.3  
2003 4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8
4-speed automatic 4WD, part-time w/low range		 hills v.lt none 0 20 10 70 100 12.5  
2003 4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 flat light none 0 10 20 70 60 16.8  
2001 4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8
4-speed automatic 4WD, part-time w/low range		 flat med none 0 40 0 60 70 14.9  
2001 2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 0 40 0 60 110 77.8  

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This page shows only averages. See all the GMC Sierra 1500 fuel economy data.

Chevrolet Impala vs. GMC Sierra 1500 MPG

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Chevrolet Impala and GMC Sierra 1500's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Chevrolet models and GMC models.

What Our Members Are Saying about the Real Gas Mileage of the Chevrolet Impala

Chevrolet Impala Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 4dr Sedan 300-horsepower 3.6L V6
6-speed automatic FWD		 I got 468 miles on a tank of gas from Greenville TN to Charleston SC then to Myrtle Beach. Very impressed see full Chevrolet Impala review
2011 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 So far so good with E10 Fuel I am getting an average of 27 and I only have 500 miles on it so far. I now have over 3000 miles and just got back from a long trip 1/2 of it hilly. I set the cruise on 67 and let it go averaged over 32mpg by the end of trip see full Chevrolet Impala review
2009 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Averaging 25.0 mpg in mixed driving, very good for the size of the vehicle and the the fact that it is a V6. see full Chevrolet Impala review
2008 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Fuel Economy beats smaller sized cars, let alone others in the same class. 30mpg is not hard to attain. see full Chevrolet Impala review
2008 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Its a full size car that gives good performance and still gets 30 MPG on the highway. see full Chevrolet Impala review
2008 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 If driven carefully, 22-30 MPG around town and 33-36 MPG highway. If you are a sloppy driver, make that 18-20 and 25 MPG. see full Chevrolet Impala review
2008 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 Mileage averages 23-24 around town and close to 30 on road trips which is quite good considering engine size and power. see full Chevrolet Impala review
2007 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 15 in town. 30 highway see full Chevrolet Impala review
2007 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Regular gas 28 city 33 Highway. E-85 25 city 28 highway. see full Chevrolet Impala review
2007 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Great with the 3.5LV6. I get about 23-25 City and 36-38 Hwy. see full Chevrolet Impala review
Chevrolet Impala Real Gas Mileage: Cons
YearBody/PowertrainComment
2008 4dr Sedan 211-horsepower 3.5L V6
4-speed automatic FWD		 Less then 25 MPG average see full Chevrolet Impala review
2008 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 In town mileage is less than 15 mpg. see full Chevrolet Impala review
2007 4dr Sedan 233-horsepower 3.9L V6
4-speed automatic FWD		 Only get about 25 mpg on interstate with the 3.9 Active fuel management is a gimmick in my opinion and older GM cars with a V6 I have driven have been better with fuel economy than the 3.9. see full Chevrolet Impala review
 

What Our Members Are Saying about the Real Gas Mileage of the GMC Sierra 1500

GMC Sierra 1500 Real Gas Mileage: Pros
YearBody/PowertrainComment
2004 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 Its great. see full GMC Sierra 1500 review
GMC Sierra 1500 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8
4-speed automatic 4WD w/low range		 Fuel economy is a suggestion - the truck, like all trucks, gets mediocre fuel economy. see full GMC Sierra 1500 review