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Cadillac STS Fuel Economy Data

4dr Sedan 254-hp 3.6L V6 5-sp shiftable automatic RWD

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
flat med light 90 0 10 0 N/A 14.100
flat lead hvy 0 0 0 100 75 23.900
flat lead hvy 20 20 40 20 60 17.500
hills med light 0 10 10 80 75 22.000
flat light hvy 5 25 20 50 70 21.000
flat med none 0 15 0 85 65 17.500
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flat med hvy 91 0 9 0 N/A 25.300
flat light none 0 0 15 85 70 18.645
flat med none 33 33 0 33 40 14.500
flat med light 0 0 0 100 75 26.300
flat med light 0 10 5 85 70 20.600
flat light none 0 0 15 85 70 18.645

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What Our Members Are Saying about the Real Gas Mileage of the 2006 Cadillac STS

2006 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
 

2006 Cadillac STS Gas Mileage (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's real-world MPG based on how and where you drive a car.