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GMC Sierra 1500 vs. Porsche 911 Fuel Economy (g/100m)

Chart is based on 526 fuel economy reports for the GMC Sierra 1500 and 56 fuel economy reports for the Porsche 911.

GMC Sierra 1500 g/100m

GMC Sierra 1500 GMC Sierra 1500 2021 4.1 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2018 4.6 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2015 4.8 MPG Highway Percentage 95 percent GMC Sierra 1500 GMC Sierra 1500 2015 31.1 MPG Highway Percentage 55 percent GMC Sierra 1500 GMC Sierra 1500 2014 5.3 MPG Highway Percentage 75 percent GMC Sierra 1500 GMC Sierra 1500 2014 4.2 MPG Highway Percentage 85 percent GMC Sierra 1500 GMC Sierra 1500 2011 6.1 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2011 5.5 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2011 6.6 MPG Highway Percentage 37 percent GMC Sierra 1500 GMC Sierra 1500 2010 13.4 MPG Highway Percentage 40 percent GMC Sierra 1500 GMC Sierra 1500 2010 5.4 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2010 5.6 MPG Highway Percentage 81 percent GMC Sierra 1500 GMC Sierra 1500 2009 5.8 MPG Highway Percentage 68 percent GMC Sierra 1500 GMC Sierra 1500 2009 6.5 MPG Highway Percentage 15 percent GMC Sierra 1500 GMC Sierra 1500 2009 32.9 MPG Highway Percentage 100 percent GMC Sierra 1500 GMC Sierra 1500 2009 5.8 MPG Highway Percentage 47 percent GMC Sierra 1500 GMC Sierra 1500 2008 27.3 MPG Highway Percentage 90 percent GMC Sierra 1500 GMC Sierra 1500 2008 5.9 MPG Highway Percentage 34 percent GMC Sierra 1500 GMC Sierra 1500 2008 5.9 MPG Highway Percentage 42 percent GMC Sierra 1500 GMC Sierra 1500 2008 5.6 MPG Highway Percentage 64 percent GMC Sierra 1500 GMC Sierra 1500 2008 40.1 MPG Highway Percentage 50 percent GMC Sierra 1500 GMC Sierra 1500 2008 4.5 MPG Highway Percentage 90 percent GMC Sierra 1500 GMC Sierra 1500 2008 5.1 MPG Highway Percentage 75 percent GMC Sierra 1500 GMC Sierra 1500 2007 7.1 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2007 5.7 MPG Highway Percentage 27 percent GMC Sierra 1500 GMC Sierra 1500 2007 7.1 MPG Highway Percentage 43 percent GMC Sierra 1500 GMC Sierra 1500 2007 5.5 MPG Highway Percentage 59 percent GMC Sierra 1500 GMC Sierra 1500 2007 6.1 MPG Highway Percentage 74 percent GMC Sierra 1500 GMC Sierra 1500 2007 5.5 MPG Highway Percentage 15 percent GMC Sierra 1500 GMC Sierra 1500 2007 5.5 MPG Highway Percentage 77 percent GMC Sierra 1500 GMC Sierra 1500 2007 6.0 MPG Highway Percentage 30 percent GMC Sierra 1500 GMC Sierra 1500 2006 37.6 MPG Highway Percentage 30 percent GMC Sierra 1500 GMC Sierra 1500 2006 5.4 MPG Highway Percentage 25 percent GMC Sierra 1500 GMC Sierra 1500 2006 6.5 MPG Highway Percentage 25 percent GMC Sierra 1500 GMC Sierra 1500 2006 6.0 MPG Highway Percentage 8 percent GMC Sierra 1500 GMC Sierra 1500 2005 6.2 MPG Highway Percentage 69 percent GMC Sierra 1500 GMC Sierra 1500 2005 5.7 MPG Highway Percentage 0 percent GMC Sierra 1500 GMC Sierra 1500 2005 31.8 MPG Highway Percentage 100 percent GMC Sierra 1500 GMC Sierra 1500 2005 6.2 MPG Highway Percentage 81 percent GMC Sierra 1500 GMC Sierra 1500 2005 5.1 MPG Highway Percentage 80 percent GMC Sierra 1500 GMC Sierra 1500 2003 5.8 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2003 44.2 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2003 6.0 MPG Highway Percentage 70 percent GMC Sierra 1500 GMC Sierra 1500 2001 6.8 MPG Highway Percentage 60 percent GMC Sierra 1500 GMC Sierra 1500 2001 7.1 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 g/100m
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 4.1  
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 4.6  
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 4.8  
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 31.1  
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 5.3  
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 4.2  
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 6.1  
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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 5.5  
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 6.6  
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 13.4  
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 5.4  
2010 2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 18 1 0 81 68 5.6  
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 5.8  
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 6.5  
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 32.9  
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 5.8  
2008 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 0 10 0 90 100 27.3  
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 5.9  
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 5.9  
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 5.6  
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 40.1  
2008 2dr Regular Cab 8ft bed 295-horsepower 4.8L V8
4-speed automatic RWD		 flat light light 0 0 10 90 65 4.5  
2008 2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6
4-speed automatic RWD		 flat light none 5 10 10 75 60 5.1  
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 7.1  
2007 4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 12 37 25 27 75 5.7  
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 7.1  
2007 4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8
4-speed automatic RWD		 flat med light 5 30 7 59 70 5.5  
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 6.1  
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 5.5  
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 5.5  
2007 4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 5 65 0 30 60 6.0  
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 37.6  
2006 4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 10 40 25 25 65 5.4  
2006 4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8
4-speed automatic AWD		 flat med none 5 20 50 25 65 6.5  
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 6.0  
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 6.2  
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 5.7  
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 31.8  
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 6.2  
2005 2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8
4-speed automatic RWD		 flat med hvy 0 2 18 80 65 5.1  
2003 4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8
4-speed automatic RWD		 flat light light 13 13 13 60 60 5.8  
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 44.2  
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 6.0  
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 6.8  
2001 2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8
4-speed automatic RWD		 flat med light 0 40 0 60 110 7.1  

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

Porsche 911 g/100m

Porsche 911 Porsche 911 2009 5.3 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2009 4.7 MPG Highway Percentage 78 percent Porsche 911 Porsche 911 2009 3.7 MPG Highway Percentage 90 percent Porsche 911 Porsche 911 2009 4.3 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2009 5.1 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2008 5.0 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 4.3 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2007 4.5 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 4.2 MPG Highway Percentage 85 percent Porsche 911 Porsche 911 2006 5.6 MPG Highway Percentage 34 percent Porsche 911 Porsche 911 2006 4.7 MPG Highway Percentage 80 percent Porsche 911 Porsche 911 2006 5.6 MPG Highway Percentage 35 percent Porsche 911 Porsche 911 2006 5.1 MPG Highway Percentage 66 percent Porsche 911 Porsche 911 2005 4.9 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2005 4.8 MPG Highway Percentage 23 percent Porsche 911 Porsche 911 2005 5.2 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2004 5.6 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2003 5.6 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2002 7.7 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2002 5.0 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2002 4.5 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2002 5.1 MPG Highway Percentage 10 percent Porsche 911 Porsche 911 2001 5.0 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2001 4.8 MPG Highway Percentage 20 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 g/100m
2009 2dr Coupe 385-horsepower 3.8L H6
7-speed automated manual RWD		 flat med hvy 2 38 30 30 80 5.3  
2009 2dr Coupe 385-horsepower 3.8L H6
6-speed manual RWD		 flat lead light 1 1 20 78 75 4.7  
2009 2dr Coupe 345-horsepower 3.6L H6
7-speed automated manual RWD		 flat light none 0 10 0 90 75 3.7  
2009 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 5 20 50 25 70 4.3  
2009 2dr Convertible 385-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 0 50 50 75 5.1  
2008 2dr Coupe 355-horsepower 3.8L H6
5-speed shiftable automatic RWD		 flat med hvy 10 50 0 40 75 5.0  
2007 2dr Coupe turbocharged 480hp 3.6L H6
6-speed manual AWD		 mtns lead hvy 5 25 40 30 70 4.3  
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2007 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 30 30 40 70 4.5  
2007 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat lead hvy 5 0 10 85 75 4.2  
2006 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 5 32 29 34 65 5.6  
2006 2dr Coupe 325-horsepower 3.6L H6
6-speed manual RWD		 flat med hvy 10 0 10 80 60 4.7  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 5 60 35 75 5.6  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual AWD		 flat med none 5 9 20 66 76 5.1  
2005 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 hills lead light 0 10 50 40 85 4.9  
2005 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat med light 7 13 57 23 60 4.8  
2005 2dr Convertible 325-horsepower 3.6L H6
6-speed manual RWD		 flat med light 0 10 20 70 60 5.2  
2004 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat med none 5 40 30 25 70 5.6  
2003 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 mtns med light 2 3 45 50 90 5.6  
2002 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 flat med none 5 15 10 70 60 7.7  
2002 2dr Coupe turbocharged 450hp 3.6L H6
5-speed shiftable automatic AWD		 flat med hvy 35 35 0 30 70 5.0  
2002 2dr Coupe 320-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 10 20 30 40 65 4.5  
2002 2dr Convertible 320-horsepower 3.6L H6
6-speed manual AWD		 hills med none 0 0 90 10 80 5.1  
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 flat light light 0 5 70 25 80 5.0  
2001 2dr Coupe 300-horsepower 3.4L H6
6-speed manual RWD		 flat med light 5 15 60 20 60 4.8  

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This page shows only averages. See all the Porsche 911 fuel economy data.

GMC Sierra 1500 vs. Porsche 911 Fuel Economy (g/100m)

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 GMC Sierra 1500 and Porsche 911's where a car was driven. So you can get an idea of their real-world g/100m based on how and where you drive a car.

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See TrueDelta's information for all GMC models and Porsche models.

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
 

What Our Members Are Saying about the Real Gas Mileage of the Porsche 911

Porsche 911 Real Gas Mileage: Cons
YearBody/PowertrainComment
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 20mpg avg isnt the best see full Porsche 911 review