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Cadillac STS vs. Volvo C30 MPG

Chart is based on 28 fuel economy reports for the Cadillac STS and 78 fuel economy reports for the Volvo C30.

Cadillac STS MPG

Cadillac STS Cadillac STS 2008 20.1 MPG Highway Percentage 90 percent Cadillac STS Cadillac STS 2008 21.8 MPG Highway Percentage 50 percent Cadillac STS Cadillac STS 2007 22.0 MPG Highway Percentage 28 percent Cadillac STS Cadillac STS 2006 24.5 MPG Highway Percentage 100 percent Cadillac STS Cadillac STS 2006 20.0 MPG Highway Percentage 60 percent Cadillac STS Cadillac STS 2006 19.0 MPG Highway Percentage 20 percent Cadillac STS Cadillac STS 2005 20.5 MPG Highway Percentage 53 percent Cadillac STS Cadillac STS 2005 14.6 MPG Highway Percentage 40 percent Cadillac STS Cadillac STS 2005 21.0 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 MPG
2008 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic AWD		 flat v.lt light 0 10 0 90 60 20.1  
2008 4dr Sedan 302-horsepower 3.6L V6
6-speed shiftable automatic RWD		 flat med light 9 11 30 50 73 21.8  
2007 4dr Sedan 320-horsepower 4.6L V8
6-speed shiftable automatic RWD		 flat med light 3 50 20 28 70 22.0  
2006 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 mtns light none 0 0 0 100 65 24.5  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat med light 20 9 10 60 67 20.0  
2006 4dr Sedan 254-horsepower 3.6L V6
5-speed shiftable automatic AWD		 flat light none 0 45 35 20 60 19.0  
2005 4dr Sedan 320-horsepower 4.6L V8
5-speed shiftable automatic RWD		 flat med light 0 3 43 53 67 20.5  
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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 14.6  
2005 4dr Sedan 255-horsepower 3.6L V6
5-speed shiftable automatic RWD		 flat light light 5 20 30 45 60 21.0  

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

Volvo C30 MPG

Volvo C30 Volvo C30 2013 29.0 MPG Highway Percentage 0 percent Volvo C30 Volvo C30 2011 25.5 MPG Highway Percentage 43 percent Volvo C30 Volvo C30 2011 16.8 MPG Highway Percentage 10 percent Volvo C30 Volvo C30 2009 26.0 MPG Highway Percentage 40 percent Volvo C30 Volvo C30 2009 26.7 MPG Highway Percentage 64 percent Volvo C30 Volvo C30 2009 30.5 MPG Highway Percentage 0 percent Volvo C30 Volvo C30 2009 41.7 MPG Highway Percentage 65 percent Volvo C30 Volvo C30 2009 27.5 MPG Highway Percentage 96 percent Volvo C30 Volvo C30 2008 26.4 MPG Highway Percentage 45 percent Volvo C30 Volvo C30 2008 25.3 MPG Highway Percentage 57 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
2013 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 flat light none 0 0 100 0 0 29.0  
2011 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 flat light light 18 27 12 43 97 25.5  
2011 2dr Hatch turbocharged 227hp 2.5L I5
5-speed shiftable automatic FWD		 flat med light 30 15 45 10 70 16.8  
2009 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 flat med none 3 14 44 40 69 26.0  
2009 2dr Hatch turbocharged 227hp 2.5L I5
5-speed shiftable automatic FWD		 flat med light 12 20 5 64 68 26.7  
2009 2dr Hatch turbocharged 177hp 2.4L I5 Diesel
6-speed manual FWD		 flat med hvy 0 25 75 0 0 30.5  
2009 2dr Hatch turbocharged 109hp 1.6L I4 Diesel
5-speed manual FWD		 flat light light 0 0 35 65 60 41.7  
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2009 2dr Hatch 99-horsepower 1.6L I4
5-speed manual FWD		 flat med light 1 1 2 96 65 27.5  
2008 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 flat med light 7 26 22 45 68 26.4  
2008 2dr Hatch turbocharged 227hp 2.5L I5
5-speed shiftable automatic FWD		 flat med light 8 21 15 57 70 25.3  

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This page shows only averages. See all the Volvo C30 fuel economy data.

Cadillac STS vs. Volvo C30 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 Cadillac STS and Volvo C30'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 Cadillac models and Volvo 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 Volvo C30

Volvo C30 Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 2dr Hatch turbocharged 227hp 2.5L I5
5-speed shiftable automatic FWD		 The fuel economy when drive correctly provides almost 30 MPG for Hwy driving. see full Volvo C30 review
Volvo C30 Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 It is not as good as I would like. see full Volvo C30 review
2008 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 The MPG is not terrible(22-24 combined mpg). But for a small car, most people would expect 30+mpg(28 at the least). see full Volvo C30 review
2008 2dr Hatch turbocharged 227hp 2.5L I5
6-speed manual FWD		 Ill admit that when I drove the C30 I was driving fast. I rented it for a weekend to see if I wanted to buy it or not. And I went thru an entire tank in less than 200 miles. see full Volvo C30 review