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BMW 6-Series vs. Buick Rainier Fuel Economy (g/100m)

Chart is based on 11 fuel economy reports for the BMW 6-Series and 12 fuel economy reports for the Buick Rainier.

BMW 6-Series g/100m

BMW 6-Series BMW 6-Series 2014 5.6 MPG Highway Percentage 74 percent BMW 6-Series BMW 6-Series 2008 5.5 MPG Highway Percentage 27 percent BMW 6-Series BMW 6-Series 2006 2.7 MPG Highway Percentage 75 percent BMW 6-Series BMW 6-Series 2005 6.0 MPG Highway Percentage 15 percent BMW 6-Series BMW 6-Series 2005 5.1 MPG Highway Percentage 60 percent BMW 6-Series BMW 6-Series 2004 26.6 MPG Highway Percentage 70 percent BMW 6-Series BMW 6-Series 2004 23.1 MPG Highway Percentage 100 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 2dr Coupe turbocharged 445hp 4.4L V8
8-speed shiftable automatic RWD
flat lead light 5 11 11 74 70 5.6  
2008 2dr Convertible 360-horsepower 4.8L V8
6-speed shiftable automatic RWD
flat light hvy 45 9 18 27 60 5.5  
2006 2dr Convertible 255-horsepower 3.0L I6
6-speed manual RWD
flat med none 3 20 3 75 72 2.7  
2005 2dr Coupe 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
flat lead light 10 35 40 15 60 6.0  
2005 2dr Coupe 325-horsepower 4.4L V8
6-speed manual RWD
flat lead hvy 0 0 40 60 80 5.1  
2004 2dr Coupe 325-horsepower 4.4L V8
6-speed shiftable automatic RWD
flat lead hvy 0 10 20 70 120 26.6  
2004 2dr Coupe 325-horsepower 4.4L V8
6-speed manual RWD
flat med none 0 0 0 100 120 23.1  

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This page shows only averages. See all the BMW 6-Series fuel economy data.

Buick Rainier g/100m

Buick Rainier Buick Rainier 2006 4.6 MPG Highway Percentage 100 percent Buick Rainier Buick Rainier 2005 4.5 MPG Highway Percentage 100 percent Buick Rainier Buick Rainier 2005 6.0 MPG Highway Percentage 10 percent Buick Rainier Buick Rainier 2004 6.1 MPG Highway Percentage 31 percent Buick Rainier Buick Rainier 2004 6.2 MPG Highway Percentage 43 percent Buick Rainier Buick Rainier 2004 5.5 MPG Highway Percentage 50 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
2006 4dr SUV 291-horsepower 4.2L I6
4-speed automatic RWD
flat med hvy 0 0 0 100 80 4.6  
2005 4dr SUV 300-horsepower 5.3L V8
4-speed automatic AWD
flat light light 0 0 0 100 60 4.5  
2005 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD
hills v.lt hvy 2 73 15 10 75 6.0  
2004 4dr SUV 290-horsepower 5.3L V8
4-speed automatic AWD
flat med none 13 23 33 31 63 6.1  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic RWD
flat light light 11 3 43 43 63 6.2  
2004 4dr SUV 275-horsepower 4.2L I6
4-speed automatic AWD
flat light none 1 10 39 50 60 5.5  

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This page shows only averages. See all the Buick Rainier fuel economy data.

BMW 6-Series vs. Buick Rainier 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 BMW 6-Series and Buick Rainier'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 Coupes and Convertibles.
See TrueDelta's information for all BMW models and Buick models.

What Our Members Are Saying about the Real Gas Mileage of the BMW 6-Series

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What Our Members Are Saying about the Real Gas Mileage of the Buick Rainier

Buick Rainier Real Gas Mileage: Cons
YearBody/PowertrainComment
2005 4dr SUV 300-horsepower 5.3L V8
4-speed automatic AWD
12 mpg see full Buick Rainier review
2004 4dr SUV 290-horsepower 5.3L V8
4-speed automatic AWD
An AWD V8 body on frame SUV/truck like the Rainier will be a gas pig. Mid to high teens are all you should expect. The benefit of poor gas mileage is strong towing performance. see full Buick Rainier review