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Cadillac STS vs. Ford Flex Fuel Economy (g/100m)

Chart is based on 28 fuel economy reports for the Cadillac STS and 390 fuel economy reports for the Ford Flex.

Cadillac STS g/100m

Cadillac STS Cadillac STS 2008 5.0 MPG Highway Percentage 90 percent Cadillac STS Cadillac STS 2008 4.6 MPG Highway Percentage 50 percent Cadillac STS Cadillac STS 2007 4.6 MPG Highway Percentage 28 percent Cadillac STS Cadillac STS 2006 4.1 MPG Highway Percentage 100 percent Cadillac STS Cadillac STS 2006 5.2 MPG Highway Percentage 60 percent Cadillac STS Cadillac STS 2006 5.3 MPG Highway Percentage 20 percent Cadillac STS Cadillac STS 2005 4.9 MPG Highway Percentage 53 percent Cadillac STS Cadillac STS 2005 23.5 MPG Highway Percentage 40 percent Cadillac STS Cadillac STS 2005 4.8 MPG Highway Percentage 45 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
2008 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic AWD		 flat v.lt light 0 10 0 90 60 5.0  
2008 4dr Sedan 302-horsepower 3.6L V6
6-speed shiftable automatic RWD		 flat med light 9 11 30 50 73 4.6  
2007 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic RWD		 flat med light 3 50 20 28 70 4.6  
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 mtns light none 0 0 0 100 65 4.1  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 20 9 10 60 67 5.2  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic AWD		 flat light none 0 45 35 20 60 5.3  
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 flat med light 0 3 43 53 67 4.9  
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2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 flat med light 10 45 5 40 70 23.5  
2005 4dr Sedan 255-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat light light 5 20 30 45 60 4.8  

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This page shows only averages. See all the Cadillac STS fuel economy data.

Ford Flex g/100m

Ford Flex Ford Flex 2014 31.7 MPG Highway Percentage 45 percent Ford Flex Ford Flex 2013 5.4 MPG Highway Percentage 60 percent Ford Flex Ford Flex 2013 5.6 MPG Highway Percentage 37 percent Ford Flex Ford Flex 2012 4.2 MPG Highway Percentage 59 percent Ford Flex Ford Flex 2011 15.2 MPG Highway Percentage 28 percent Ford Flex Ford Flex 2011 4.4 MPG Highway Percentage 25 percent Ford Flex Ford Flex 2011 5.6 MPG Highway Percentage 10 percent Ford Flex Ford Flex 2010 8.1 MPG Highway Percentage 61 percent Ford Flex Ford Flex 2010 4.7 MPG Highway Percentage 48 percent Ford Flex Ford Flex 2010 26.7 MPG Highway Percentage 67 percent Ford Flex Ford Flex 2009 6.2 MPG Highway Percentage 62 percent Ford Flex Ford Flex 2009 6.5 MPG Highway Percentage 22 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
2014 4dr SUV 287-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat light none 0 55 0 45 110 31.7  
2013 4dr SUV turbocharged 365hp 3.5L V6
6-speed shiftable automatic AWD		 flat med hvy 10 20 10 60 70 5.4  
2013 4dr SUV 287-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat light hvy 5 0 58 37 75 5.6  
2012 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 flat med none 0 16 26 59 68 4.2  
2011 4dr SUV turbocharged 355hp 3.5L V6
6-speed shiftable automatic AWD		 flat med light 47 10 15 28 80 15.2  
2011 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 flat light none 0 25 50 25 75 4.4  
2011 4dr SUV 262-horsepower 3.5L V6
6-speed automatic AWD		 flat light none 10 60 20 10 60 5.6  
Looking for a warranty? Get a quote.
2010 4dr SUV turbocharged 355hp 3.5L V6
6-speed shiftable automatic AWD		 flat med none 6 10 23 61 73 8.1  
2010 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 flat light none 5 23 25 48 66 4.7  
2010 4dr SUV 262-horsepower 3.5L V6
6-speed automatic AWD		 flat med none 0 33 0 67 100 26.7  
2009 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 flat light light 2 13 23 62 70 6.2  
2009 4dr SUV 262-horsepower 3.5L V6
6-speed automatic AWD		 hills med light 4 36 38 22 68 6.5  

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This page shows only averages. See all the Ford Flex fuel economy data.

Cadillac STS vs. Ford Flex 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 Cadillac STS and Ford Flex'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.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Cadillac models and Ford models.

What Our Members Are Saying about the Real Gas Mileage of the Cadillac STS

Cadillac STS Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 16 city/21 highway. Buy it only if you can afford it with out complaining. see full Cadillac STS review
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic AWD		 This car is thirsty. I live in flat country and I get 15 mpg with 80% highway traffic. I only get 19 mpg on trips. It probably needs a 6th speed overdive for the highway. see full Cadillac STS review
 

What Our Members Are Saying about the Real Gas Mileage of the Ford Flex

Ford Flex Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 I am currently averaging 20 MPG overall with heavy highway use. For the size of vehicle I think that is rather reasonable. see full Ford Flex review
2010 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 1000 miles of ownership so far, 21-22 mpg in light suburb and highway driving, 24-25 mpg on 500 mile trip (fuel economy measured by calculating miles driven divided by gallons of fuel purchased). see full Ford Flex review
2009 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 Only driven around town, mileage 16.6, have never had it on the open road. see full Ford Flex review
2009 4dr SUV 262-horsepower 3.5L V6
6-speed automatic FWD		 Very good for a 4500 lb vehicle. see full Ford Flex review