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Kia Optima vs. Mazda Mazda3 MPG

Chart is based on 152 fuel economy reports for the Kia Optima and 1582 fuel economy reports for the Mazda Mazda3.

Kia Optima MPG

Kia Optima Kia Optima 2019 26.7 MPG Highway Percentage 40 percent Kia Optima Kia Optima 2017 52.6 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2016 39.0 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2013 25.5 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2013 27.1 MPG Highway Percentage 54 percent Kia Optima Kia Optima 2013 32.5 MPG Highway Percentage 71 percent Kia Optima Kia Optima 2012 25.6 MPG Highway Percentage 39 percent Kia Optima Kia Optima 2012 32.3 MPG Highway Percentage 76 percent Kia Optima Kia Optima 2011 28.0 MPG Highway Percentage 68 percent Kia Optima Kia Optima 2011 28.7 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2011 30.0 MPG Highway Percentage 75 percent Kia Optima Kia Optima 2010 20.0 MPG Highway Percentage 20 percent Kia Optima Kia Optima 2010 36.2 MPG Highway Percentage 80 percent Kia Optima Kia Optima 2009 29.1 MPG Highway Percentage 67 percent Kia Optima Kia Optima 2008 26.3 MPG Highway Percentage 10 percent Kia Optima Kia Optima 2008 26.2 MPG Highway Percentage 25 percent Kia Optima Kia Optima 2007 29.5 MPG Highway Percentage 78 percent Kia Optima Kia Optima 2007 23.2 MPG Highway Percentage 15 percent Kia Optima Kia Optima 2006.5 24.6 MPG Highway Percentage 58 percent Kia Optima Kia Optima 2006.5 28.9 MPG Highway Percentage 56 percent Kia Optima Kia Optima 2006.5 30.0 MPG Highway Percentage 90 percent Kia Optima Kia Optima 2005 12.1 MPG Highway Percentage 0 percent Kia Optima Kia Optima 2004 30.0 MPG Highway Percentage 95 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
2019 4dr Sedan turbocharged 245hp 2.0L I4
6-speed shiftable automatic FWD
flat med hvy 0 10 50 40 70 26.7  
2017 4dr Sedan 154-horsepower 2.0L I4 Hybrid
6-speed shiftable automatic FWD
flat light light 30 30 20 20 70 52.6  
2016 4dr Sedan turbocharged 178hp 1.6L I4
7-speed automated manual FWD
hills light light 6 0 14 80 67 39.0  
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat light light 0 24 21 56 69 25.5  
2013 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat light none 0 32 14 54 83 27.1  
2013 4dr Sedan 159-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD
flat v.lt none 2 13 15 71 102 32.5  
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
hills light light 4 18 39 39 72 25.6  
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2012 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat med none 0 4 20 76 69 32.3  
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
hills med light 0 5 28 68 70 28.0  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
hills light none 4 7 21 67 66 28.7  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed manual FWD
flat med light 0 5 20 75 75 30.0  
2010 4dr Sedan 194-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat med light 0 10 70 20 75 20.0  
2010 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light none 0 0 20 80 63 36.2  
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 5 12 16 67 65 29.1  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 20 60 10 10 60 26.3  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
flat lead light 30 15 30 25 75 26.2  
2007 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat med none 7 13 3 78 108 29.5  
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
hills med none 1 36 48 15 63 23.2  
2006.5 4dr Sedan 185-horsepower 2.7L V6
5-speed shiftable automatic FWD
flat light hvy 6 4 33 58 66 24.6  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 18 16 9 56 63 28.9  
2006.5 4dr Sedan 161-horsepower 2.4L I4
5-speed manual FWD
flat light hvy 0 0 10 90 60 30.0  
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
hills lead light 5 95 0 0 0 12.1  
2004 4dr Sedan 138-horsepower 2.4L I4
5-speed manual FWD
flat light hvy 0 0 5 95 70 30.0  

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This page shows only averages. See all the Kia Optima fuel economy data.

Mazda Mazda3 MPG

Mazda Mazda3 Mazda Mazda3 2017 30.9 MPG Highway Percentage 40 percent Mazda Mazda3 Mazda Mazda3 2016 31.4 MPG Highway Percentage 55 percent Mazda Mazda3 Mazda Mazda3 2015 40.0 MPG Highway Percentage 90 percent Mazda Mazda3 Mazda Mazda3 2015 39.6 MPG Highway Percentage 90 percent Mazda Mazda3 Mazda Mazda3 2014 25.6 MPG Highway Percentage 0 percent Mazda Mazda3 Mazda Mazda3 2014 38.3 MPG Highway Percentage 63 percent Mazda Mazda3 Mazda Mazda3 2014 33.5 MPG Highway Percentage 25 percent Mazda Mazda3 Mazda Mazda3 2014 29.2 MPG Highway Percentage 71 percent Mazda Mazda3 Mazda Mazda3 2013 35.9 MPG Highway Percentage 46 percent Mazda Mazda3 Mazda Mazda3 2013 37.8 MPG Highway Percentage 58 percent Mazda Mazda3 Mazda Mazda3 2013 21.7 MPG Highway Percentage 40 percent Mazda Mazda3 Mazda Mazda3 2013 28.7 MPG Highway Percentage 40 percent Mazda Mazda3 Mazda Mazda3 2013 39.3 MPG Highway Percentage 84 percent Mazda Mazda3 Mazda Mazda3 2012 31.0 MPG Highway Percentage 44 percent Mazda Mazda3 Mazda Mazda3 2012 35.0 MPG Highway Percentage 83 percent Mazda Mazda3 Mazda Mazda3 2012 25.0 MPG Highway Percentage 46 percent Mazda Mazda3 Mazda Mazda3 2012 21.7 MPG Highway Percentage 34 percent Mazda Mazda3 Mazda Mazda3 2012 36.3 MPG Highway Percentage 34 percent Mazda Mazda3 Mazda Mazda3 2012 29.7 MPG Highway Percentage 62 percent Mazda Mazda3 Mazda Mazda3 2011 30.8 MPG Highway Percentage 80 percent Mazda Mazda3 Mazda Mazda3 2011 28.9 MPG Highway Percentage 80 percent Mazda Mazda3 Mazda Mazda3 2011 27.3 MPG Highway Percentage 30 percent Mazda Mazda3 Mazda Mazda3 2011 34.9 MPG Highway Percentage 88 percent Mazda Mazda3 Mazda Mazda3 2011 26.8 MPG Highway Percentage 69 percent Mazda Mazda3 Mazda Mazda3 2011 29.7 MPG Highway Percentage 60 percent Mazda Mazda3 Mazda Mazda3 2011 24.1 MPG Highway Percentage 43 percent Mazda Mazda3 Mazda Mazda3 2010.5 25.6 MPG Highway Percentage 25 percent Mazda Mazda3 Mazda Mazda3 2010 28.8 MPG Highway Percentage 69 percent Mazda Mazda3 Mazda Mazda3 2010 26.7 MPG Highway Percentage 51 percent Mazda Mazda3 Mazda Mazda3 2010 30.2 MPG Highway Percentage 43 percent Mazda Mazda3 Mazda Mazda3 2010 34.9 MPG Highway Percentage 49 percent Mazda Mazda3 Mazda Mazda3 2010 24.2 MPG Highway Percentage 58 percent Mazda Mazda3 Mazda Mazda3 2010 27.8 MPG Highway Percentage 37 percent Mazda Mazda3 Mazda Mazda3 2010 24.2 MPG Highway Percentage 60 percent Mazda Mazda3 Mazda Mazda3 2010 24.8 MPG Highway Percentage 20 percent Mazda Mazda3 Mazda Mazda3 2009 36.9 MPG Highway Percentage 90 percent Mazda Mazda3 Mazda Mazda3 2009 26.0 MPG Highway Percentage 44 percent Mazda Mazda3 Mazda Mazda3 2009 29.7 MPG Highway Percentage 52 percent Mazda Mazda3 Mazda Mazda3 2009 23.7 MPG Highway Percentage 51 percent Mazda Mazda3 Mazda Mazda3 2009 25.6 MPG Highway Percentage 59 percent Mazda Mazda3 Mazda Mazda3 2009 29.1 MPG Highway Percentage 59 percent Mazda Mazda3 Mazda Mazda3 2008.5 29.1 MPG Highway Percentage 50 percent Mazda Mazda3 Mazda Mazda3 2008.5 39.4 MPG Highway Percentage 77 percent Mazda Mazda3 Mazda Mazda3 2008.5 27.1 MPG Highway Percentage 35 percent Mazda Mazda3 Mazda Mazda3 2008.5 22.1 MPG Highway Percentage 38 percent Mazda Mazda3 Mazda Mazda3 2008.5 26.9 MPG Highway Percentage 24 percent Mazda Mazda3 Mazda Mazda3 2008.5 28.1 MPG Highway Percentage 69 percent Mazda Mazda3 Mazda Mazda3 2008 24.7 MPG Highway Percentage 45 percent Mazda Mazda3 Mazda Mazda3 2008 35.3 MPG Highway Percentage 90 percent Mazda Mazda3 Mazda Mazda3 2008 31.0 MPG Highway Percentage 46 percent Mazda Mazda3 Mazda Mazda3 2008 31.0 MPG Highway Percentage 55 percent Mazda Mazda3 Mazda Mazda3 2008 25.1 MPG Highway Percentage 67 percent Mazda Mazda3 Mazda Mazda3 2008 25.8 MPG Highway Percentage 42 percent Mazda Mazda3 Mazda Mazda3 2008 25.4 MPG Highway Percentage 32 percent Mazda Mazda3 Mazda Mazda3 2007 22.1 MPG Highway Percentage 10 percent Mazda Mazda3 Mazda Mazda3 2007 25.4 MPG Highway Percentage 48 percent Mazda Mazda3 Mazda Mazda3 2007 31.4 MPG Highway Percentage 38 percent Mazda Mazda3 Mazda Mazda3 2007 28.8 MPG Highway Percentage 52 percent Mazda Mazda3 Mazda Mazda3 2007 24.1 MPG Highway Percentage 36 percent Mazda Mazda3 Mazda Mazda3 2007 25.1 MPG Highway Percentage 38 percent Mazda Mazda3 Mazda Mazda3 2007 28.2 MPG Highway Percentage 57 percent Mazda Mazda3 Mazda Mazda3 2006.5 16.4 MPG Highway Percentage 5 percent Mazda Mazda3 Mazda Mazda3 2006 26.1 MPG Highway Percentage 28 percent Mazda Mazda3 Mazda Mazda3 2006 28.5 MPG Highway Percentage 49 percent Mazda Mazda3 Mazda Mazda3 2006 30.2 MPG Highway Percentage 46 percent Mazda Mazda3 Mazda Mazda3 2006 28.0 MPG Highway Percentage 51 percent Mazda Mazda3 Mazda Mazda3 2006 26.2 MPG Highway Percentage 40 percent Mazda Mazda3 Mazda Mazda3 2006 28.5 MPG Highway Percentage 42 percent Mazda Mazda3 Mazda Mazda3 2005 30.2 MPG Highway Percentage 73 percent Mazda Mazda3 Mazda Mazda3 2005 26.6 MPG Highway Percentage 20 percent Mazda Mazda3 Mazda Mazda3 2005 29.2 MPG Highway Percentage 41 percent Mazda Mazda3 Mazda Mazda3 2005 29.0 MPG Highway Percentage 51 percent Mazda Mazda3 Mazda Mazda3 2005 24.3 MPG Highway Percentage 34 percent Mazda Mazda3 Mazda Mazda3 2004 26.7 MPG Highway Percentage 42 percent Mazda Mazda3 Mazda Mazda3 2004 26.5 MPG Highway Percentage 55 percent Mazda Mazda3 Mazda Mazda3 2004 29.2 MPG Highway Percentage 63 percent Mazda Mazda3 Mazda Mazda3 2004 29.6 MPG Highway Percentage 55 percent Mazda Mazda3 Mazda Mazda3 2004 29.5 MPG Highway Percentage 40 percent Mazda Mazda3 Mazda Mazda3 2004 25.3 MPG Highway Percentage 39 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
2017 4dr Hatch 155-horsepower 2.0L I4
6-speed manual FWD
flat med light 30 15 15 40 75 30.9  
2016 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
flat med none 0 35 10 55 75 31.4  
2015 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
hills med hvy 0 0 10 90 70 40.0  
2015 4dr Hatch 155-horsepower 2.0L I4
6-speed manual FWD
flat light none 0 5 5 90 107 39.6  
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD
flat light hvy 0 100 0 0 0 25.6  
2014 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
flat light none 3 30 3 63 72 38.3  
2014 4dr Sedan 155-horsepower 2.0L I4
6-speed manual FWD
flat light hvy 10 55 10 25 65 33.5  
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2014 4dr Hatch 184-horsepower 2.5L I4
6-speed shiftable automatic FWD
flat med light 0 8 22 71 69 29.2  
2013 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
flat light light 0 27 28 46 67 35.9  
2013 4dr Sedan 155-horsepower 2.0L I4
6-speed manual FWD
flat light light 0 16 26 58 70 37.8  
2013 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
hills med light 10 20 30 40 70 21.7  
2013 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
flat med none 9 23 29 40 110 28.7  
2013 4dr Hatch 155-horsepower 2.0L I4
6-speed manual FWD
flat light light 0 1 14 84 61 39.3  
2012 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
flat light none 0 22 34 44 66 31.0  
2012 4dr Sedan 155-horsepower 2.0L I4
6-speed manual FWD
flat med none 0 4 12 83 81 35.0  
2012 4dr Sedan 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
flat light none 0 54 0 46 70 25.0  
2012 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
hills med none 13 28 25 34 75 21.7  
2012 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
hills med light 10 26 30 34 62 36.3  
2012 4dr Hatch 155-horsepower 2.0L I4
6-speed manual FWD
flat med light 0 24 14 62 108 29.7  
2011 4dr Sedan 167-horsepower 2.5L I4
6-speed manual FWD
flat light light 0 15 5 80 70 30.8  
2011 4dr Sedan 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
flat med light 5 7 8 80 67 28.9  
2011 4dr Sedan 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
flat med light 2 42 26 30 70 27.3  
2011 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat light light 1 2 10 88 70 34.9  
2011 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
hills med light 10 7 14 69 70 26.8  
2011 4dr Hatch 167-horsepower 2.5L I4
6-speed manual FWD
flat light light 0 10 30 60 110 29.7  
2011 4dr Hatch 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
hills med light 10 31 16 43 65 24.1  
2010.5 4dr Sedan 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
flat med hvy 25 25 25 25 110 25.6  
2010 4dr Sedan 167-horsepower 2.5L I4
6-speed manual FWD
flat med none 5 13 14 69 78 28.8  
2010 4dr Sedan 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
flat light light 6 28 15 51 68 26.7  
2010 4dr Sedan 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
flat med light 12 22 24 43 63 30.2  
2010 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat light none 0 6 45 49 67 34.9  
2010 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
flat med none 13 15 14 58 67 24.2  
2010 4dr Hatch 167-horsepower 2.5L I4
6-speed manual FWD
hills med light 8 21 34 37 74 27.8  
2010 4dr Hatch 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
flat med none 3 20 17 60 70 24.2  
2010 4dr Hatch 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
flat light none 5 65 11 20 95 24.8  
2009 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat light none 0 0 10 90 100 36.9  
2009 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat med light 4 33 18 44 103 26.0  
2009 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat med none 12 13 23 52 66 29.7  
2009 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
flat med none 8 19 23 51 71 23.7  
2009 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med light 1 11 28 59 71 25.6  
2009 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD
flat med light 7 10 23 59 94 29.1  
2008.5 4dr Sedan 156-horsepower 2.3L I4
5-speed manual FWD
flat med light 1 47 1 50 65 29.1  
2008.5 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat med none 0 22 2 77 60 39.4  
2008.5 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat light light 0 16 50 35 70 27.1  
2008.5 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
flat med light 11 27 24 38 71 22.1  
2008.5 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med none 33 22 21 24 70 26.9  
2008.5 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD
flat light none 3 7 20 69 63 28.1  
2008 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med light 13 27 14 45 73 24.7  
2008 4dr Sedan 156-horsepower 2.3L I4
5-speed manual FWD
flat light none 5 0 5 90 65 35.3  
2008 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat light none 4 17 23 46 101 31.0  
2008 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat med none 5 10 31 55 85 31.0  
2008 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
flat med none 7 14 12 67 69 25.1  
2008 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat light light 10 15 33 42 69 25.8  
2008 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD
hills med light 10 40 19 32 74 25.4  
2007 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat light light 10 80 0 10 60 22.1  
2007 4dr Sedan 156-horsepower 2.3L I4
5-speed manual FWD
flat med light 4 24 23 48 92 25.4  
2007 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat med light 4 6 52 38 68 31.4  
2007 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat med none 10 24 14 52 85 28.8  
2007 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
hills light none 4 34 25 36 64 24.1  
2007 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med light 13 12 37 38 75 25.1  
2007 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD
flat med light 8 22 12 57 76 28.2  
2006.5 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
flat lead hvy 50 30 15 5 90 16.4  
2006 4dr Sedan 160-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med light 8 33 31 28 78 26.1  
2006 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD
flat med light 10 20 21 49 72 28.5  
2006 4dr Sedan 150-horsepower 2.0L I4
5-speed manual FWD
flat med none 1 44 10 46 75 30.2  
2006 4dr Sedan 150-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat med light 19 12 18 51 66 28.0  
2006 4dr Hatch 160-horsepower 2.3L I4
5-speed shiftable automatic FWD
flat med light 13 24 24 40 62 26.2  
2006 4dr Hatch 160-horsepower 2.3L I4
5-speed manual FWD
flat med light 10 23 25 42 72 28.5  
2005 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD
flat med none 5 10 13 73 93 30.2  
2005 4dr Sedan 160-horsepower 2.3L I4
4-speed shiftable automatic FWD
flat med light 2 55 23 20 69 26.6  
2005 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
flat light light 12 29 18 41 66 29.2  
2005 4dr Hatch 160-horsepower 2.3L I4
5-speed manual FWD
hills med none 9 22 18 51 76 29.0  
2005 4dr Hatch 160-horsepower 2.3L I4
4-speed shiftable automatic FWD
flat med light 12 39 15 34 76 24.3  
2004 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD
flat med light 6 35 18 42 91 26.7  
2004 4dr Sedan 160-horsepower 2.3L I4
4-speed shiftable automatic FWD
flat med light 12 10 24 55 69 26.5  
2004 4dr Sedan 148-horsepower 2.0L I4
5-speed manual FWD
flat med light 3 10 23 63 90 29.2  
2004 4dr Sedan 148-horsepower 2.0L I4
4-speed shiftable automatic FWD
hills med none 10 18 18 55 81 29.6  
2004 4dr Hatch 160-horsepower 2.3L I4
5-speed manual FWD
flat med light 8 29 23 40 78 29.5  
2004 4dr Hatch 160-horsepower 2.3L I4
4-speed shiftable automatic FWD
flat light light 16 17 28 39 72 25.3  

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This page shows only averages. See all the Mazda Mazda3 fuel economy data.

Kia Optima vs. Mazda Mazda3 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 Kia Optima and Mazda Mazda3'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 and Wagons.
See TrueDelta's information for all Kia models and Mazda models.

TrueDelta Reviews the Real Gas Mileage of the Kia Optima

Kia Optima Real Gas Mileage: Pros
YearComment
2013 Many auto makers are substituting turbocharged fours for V6s because of their theoretically superior fuel economy. The Kia Optima SXL earns EPA ratings of 22 mpg city, 34 highway. The similarly turbo-foured Ford Fusion comes close, 22/33. The most fuel efficient V6, in the new Honda Accord, manages 21/34 without paddle shifters, but 21/32 with them. Trip computer numbers suggest a one-to-two mpg advantage for the Kia in real-world suburban driving--perhaps too close to call since these devices aren't terribly precise. Figure just under 20 with a heavy foot, mid-20s if you resist the temptation, and just over 30 with a very light foot and luck with the lights. All of these figures are with the engine warmed up. In cold weather, fuel economy is in the mid-teens for the first mile or two. An eco mode makes little noticeable difference in either how the car drives or its fuel economy. These numbers don't seem particularly good? Recall that the Kia Optima SXL is a very quick car. You won't find a 274-horsepower sedan that does better without the aid of a battery pack. see full Kia Optima review
 

What Our Members Are Saying about the Real Gas Mileage of the Kia Optima

Kia Optima Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
I find fuel economy, in mixed driving, to be on par with a V6 of comparable power. I usually get about 24 MPG in combined driving. However, on a recent road trip, I had 32 MPG on one tank. It's perhaps slightly better than the Acura TL I had, but one big bonus: the Acura required premium unleaded. On the Kia Optima, however, the manufacturer only calls for regular unleaded. Over time, that can mean a significant savings. see full Kia Optima review
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
This is my biggest (and only real) complaint with the Optima. It advertises fuel economy of 22 city, 34 highway. I drive a lot (100 mile round trip daily, with more than half of it being highway miles). Admittedly, I have a heavy foot, but I regularly get about 24-25 mpg combined, with the car in ECO mode. The best tank of gas I ever got was a little over 28 mpg. (I calculate it manually, don't rely on the on-board MPG estimates, as they are always 3-5 MPG more generous than reality.) see full Kia Optima review
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
High 30s on the highway and 29-30 overall with a lot of power. Active eco. setting for better economy. see full Kia Optima review
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
33 mpg on 200 mile trips at about 65 mph avg. see full Kia Optima review
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
Decent fuel mileage at this point for a mid-size sedan. see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
25-30 city/hwy see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
It may be a bit borderline in 100% city driving (19-20 mpg), but it gets 33mpg+ on the open highway, with only a 1-2 mpg penalty for using A/C. see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD
got 42 mgh yesteerday on a 120 minute drive 25%/75% in town/highway driving. Like paying $2.25 per gallon, see full Kia Optima review
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
AS above see full Kia Optima review
Kia Optima Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
I'd recommend this car in a heartbeat. I honestly like this styling even more than the updates they've made since 2012. My biggest cons are the fuel economy and the lack of a manual transmission on any models other than the base model. see full Kia Optima review
 

TrueDelta Reviews the Real Gas Mileage of the Mazda Mazda3

Mazda Mazda3 Real Gas Mileage: Pros
YearComment
2014 Ever since gas guzzling rotary engines almost put Mazda out of business in the 1970s, fuel economy has been a company weakness. The 2013 Mazda3 with a 167-horsepower 2.5-liter engine and five-speed automatic transmission managed only 22 mpg city, 29 mpg highway in the EPA's tests. (The same engine with a manual transmission did even worse, 20/28.) The 2014 with a new SKYACTIV 184-horsepower 2.5-liter engine and six-speed automatic transmission fares much better, 27 mpg city and 37 mpg highway. A $1,600 Tech Package (on the tested car) adds a capacitor-based regenerative braking system that bumps these ratings to 28/38. Quite impressive for a large, fairly powerful four-cylinder engine. The i's 155-horsepower 2.0-liter engine does a bit better still, 30/40, but anyone who cares about driving will gladly trade a 2-3 mpg to pick up 29 horsepower. In my real-world, sub-freezing suburban driving, the trip computer reported a two-way average around 40 mpg when I drove with a feather-light right foot. Push the car harder and high-20s to mid-30s happen. The Focus also manages 27/37 in the EPA's tests, but wasn't quite as efficient as the Mazda in my real-world driving. Others including the 23/35 Dodge Dart GT and 21/29 Kia Forte SX don't come close. see full Mazda Mazda3 review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda Mazda3

Mazda Mazda3 Real Gas Mileage: Pros
YearBody/PowertrainComment
2014 4dr Hatch 184-horsepower 2.5L I4
6-speed shiftable automatic FWD
Even with the 2.5L 'S' Option, the Mazda SkyActiv tech gives the Mazda3 a very impressive 28/39MPG. The 2.0L standard option gives 31/42. That's pretty standard in most new cars, however the performance for that economy is well above average. Good engines, these are. see full Mazda Mazda3 review
2013 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
30+mpg avg since new; starting to improve to around 33mpg per tankful, mixed driving, more town than highway see full Mazda Mazda3 review
2012 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
While reviews are mixed, the Skyactiv engine delivers as promised for me. With over 70% city/suburb driving, I've yet to average under 30mpg (odo/pump). Set the cruise control at 65-70 and > 40mpg is easy on a flat highway. see full Mazda Mazda3 review
2012 4dr Hatch 155-horsepower 2.0L I4
6-speed manual FWD
Excellent fuel economy with the skyactiv 155hp engine see full Mazda Mazda3 review
2012 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
This car does very well.. I drive mostly highway during the week, but a lot of rush hour driving means lots of stop and go. Even with that and the around town driving I do on the weekends, I am still averaging 38.1 MPG! see full Mazda Mazda3 review
2012 4dr Sedan 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
Hard to beat 40 mpg in a car that drives as well and has the performance of the Mazda3. Most ZOOM ZOOM for the price of any car I test drove. see full Mazda Mazda3 review
2012 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
I drive it on the highway at a constant speed of about 78 with the cruise control on, for my daily commute . Very little traffic on my commute, and speed limit is 70. I get about 33 mpg, or 380 miles per tank. I've found that long-range runs of an hour or more seems to burn out the gunk, and I have better fuel economy for the next week or two. I figure driving near 80 is killing the advertised 39 mpg with the Skyactiv engine. see full Mazda Mazda3 review
2011 4dr Sedan 148-horsepower 2.0L I4
5-speed shiftable automatic FWD
great gas mileage even for a lead-foot like myself. see full Mazda Mazda3 review
2010 4dr Sedan 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
I am currently getting 7.7L/100 km in the city and the vehicle only has 2000km on it. see full Mazda Mazda3 review
2010 4dr Hatch 167-horsepower 2.5L I4
6-speed manual FWD
Avg. 27mpg over the past two years. see full Mazda Mazda3 review
Mazda Mazda3 Real Gas Mileage: Cons
YearBody/PowertrainComment
2013 4dr Hatch 155-horsepower 2.0L I4
6-speed shiftable automatic FWD
Fuel economy has been OK. I usually do a 50/50 mix and in good weather, I get in the high 7s/100km or about 30 MPG. In the cold weather, it's been closer to 9L/100km or about 26 MPG. Strangely, it's about the same economy I got with my 99 Civic w/ 4 spd auto. see full Mazda Mazda3 review
2011 4dr Hatch 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
22 mpg (city) in a car this small is abysmal. 27 highway is worse. see full Mazda Mazda3 review
2011 4dr Sedan 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
I have the Grand Touring model with the upped engine. Fuel economy is very poor compared to other cars in its class. see full Mazda Mazda3 review
2010 4dr Sedan 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
It sucks (literally). Slightly better than 25 mpg overall (I am driving one with a bigger engine). The 3 i variant would do better without much sacrafaces. But the rating is still below Civics and Corollas of the world. see full Mazda Mazda3 review
2010 4dr Hatch 167-horsepower 2.5L I4
5-speed shiftable automatic FWD
Fuel economy in the VW GTI is slightly better than the Mazda 3, but it requires premium fuel. In the end, it's about even. see full Mazda Mazda3 review
2009 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
We average aprox 22MPG. Dont buy the Speed version of the Mazda 3 if your looking for fuel economy. Buy it if you have a smile pasted on your face when you drive. see full Mazda Mazda3 review
2008 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD
10.5L avg for 100kms for the 2.3L 5 spd engine. Not as good as some of the competitors. see full Mazda Mazda3 review
2008 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
I wish it was better. I get about 23MPG in the city and 27 combined city/highway. see full Mazda Mazda3 review
2008 4dr Hatch turbocharged 263hp 2.3L I4
6-speed manual FWD
Runs premium, burns through fuel fairly quickly with a lot of spirited driving. see full Mazda Mazda3 review
2008 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD
only 22 MPG highway - with a lead foot. My RAV4 V6 gets the same MPG see full Mazda Mazda3 review