Acura ILX vs. Mercedes-Benz S-Class MPG

Chart is based on 2 fuel economy reports for the Acura ILX and 22 fuel economy reports for the Mercedes-Benz S-Class.

Acura ILX MPG

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
2016	4dr Sedan 201-horsepower 2.4L I4 8-speed automated manual FWD	hills	med	light	0	0	10	90	60	38.9
2013	4dr Sedan 150-horsepower 2.0L I4 5-speed shiftable automatic FWD	flat	light	light	0	0	10	90	100	40.8

This page shows only averages. See all the Acura ILX fuel economy data.

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
2007	4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD	flat	med	none	5	15	35	45	62	21.8
2007	4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic AWD	flat	light	none	10	10	10	70	65	25.0
2006	4dr Sedan, ext. 302-horsepower 5.0L V8 7-speed shiftable automatic RWD	flat	med	hvy	1	1	0	98	78	24.7
2006	4dr Sedan, ext. 302-horsepower 5.0L V8 5-speed shiftable automatic AWD	flat	light	none	0	0	20	80	65	23.5
2006	4dr Sedan, ext. 275-horsepower 4.3L V8 7-speed shiftable automatic RWD	flat	light	hvy	0	15	0	85	60	23.0
2004	4dr Sedan, ext. 302-horsepower 5.0L V8 5-speed shiftable automatic AWD	flat	med	none	1	45	8	47	80	19.9
2004	4dr Sedan, ext. 275-horsepower 4.3L V8 7-speed shiftable automatic RWD	flat	med	hvy	0	2	18	80	75	24.0
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2003	4dr Sedan, ext. turbocharged 493hp 5.5L V12 5-speed shiftable automatic RWD	flat	light	light	7	11	15	68	108	18.1
2003	4dr Sedan, ext. 275-horsepower 4.3L V8 5-speed shiftable automatic RWD	flat	med	hvy	6	12	12	71	70	17.6
2002	4dr Sedan, ext. 275-horsepower 4.3L V8 5-speed shiftable automatic RWD	flat	med	hvy	13	6	54	29	68	19.5
2001	4dr Sedan, ext. 302-horsepower 5.0L V8 5-speed shiftable automatic RWD	flat	med	none	20	80	0	0	0	11.7
2000	4dr Sedan, ext. 275-horsepower 4.3L V8 5-speed shiftable automatic RWD	flat	v.lt	light	0	7	11	82	62	24.0

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Acura ILX Real Gas Mileage: Pros
Year	Comment
2016	High-revving largish fours aren't the fashionable route to fuel efficiency. But the 201-horsepower 2.4-liter engine when mated to an eight-speed dual clutch automated manual transmission (DCT) returns EPA ratings of 25 mpg city, 36 mpg highway--better than the 2013-2015 ILX managed with a 150-horsepower 2.0-liter engine. The Audi with its au courant 180-horsepower turbocharged 1.8-liter checks in a little lower, with 23/33. But the Acura isn't quite best-in-class. The Mercedes-Benz CLA250 manages 26/38. Notably, both the Audi and the Mercedes also have DCTs, though with "only" six and seven speeds, respectively. Then there are hybrids and diesels. The ILX used to be available as a hybrid. But the ILX Hybrid's fuel economy wasn't stellar (39/38) and its performance was so uncompetitive even compared to the Prius-based Lexus CT 200h (43/40) that Acura killed it after just two model years. The Audi A3 TDI, the segment's lone entrant with a diesel, rates 31/43. For a combination of performance and fuel economy, it's hard to beat. Except that as I write this Audi dealers can't sell them, pending an investigation into whether they violate EPA regulations. A final note on fuel economy: the TLX's EPA figures are only a single mpg lower than the ILX's. see full Acura ILX review

Acura ILX Real Gas Mileage: Cons
Year	Comment
	Why doesn't Acura offer the larger four-cylinder engine with an automatic transmission? Likely because its fuel economy is already iffy with the stick. The EPA ratings are 22 MPG city, 31 highway. One benefit of turbochargers is that they enable lower rpm shifts and taller gearing. A Jetta GLI matches the Acura in the city, and does a couple MPG better on the highway. Not bad, but you'll find some much more powerful, much larger cars that score better than either of them. see full Acura ILX review

None of our members have yet commented on the real gas mileage of the Acura ILX.

Mercedes-Benz S-Class Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2007	4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD	Since my driving is about 50-50 city and highway, I average about 20-21 mpg, using premium fuel. All highway is 29-30mpg and all city is 14-15mpg. see full Mercedes-Benz S-Class review
2007	0	While on long trips at 70-80mph I average 32mpg around town it never goes better than 24mpg. Easy on the pedal sure shows results but fully loaded the thing shifts like a two door sports. see full Mercedes-Benz S-Class review

Mercedes-Benz S-Class Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	4dr Sedan turbocharged 232hp 3.0L V6 Diesel 7-speed shiftable automatic RWD	Very, very expensive see full Mercedes-Benz S-Class review
2007	4dr Sedan, ext. 382-horsepower 5.5L V8 7-speed shiftable automatic RWD	Driving it in a lot of stop and go traffic it drinks gas. see full Mercedes-Benz S-Class review
2007	0	Fuel cost are a killer and servicing requires finding an allternative to the Mercedes Garage see full Mercedes-Benz S-Class review
2001	4dr Sedan, ext. 302-horsepower 5.0L V8 5-speed shiftable automatic RWD	20l/100km but its still worth it see full Mercedes-Benz S-Class review