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I have heard rumors that the car gets better gas mileage if you leave it in AWD. This sounds like crap to me, but I was wondering if anyone has tried it.
 

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According to one test I read, the mileage is slightly worse in AWD. That agrees with my results. 1-2 mpg worse. Unless the roads are clear, dry and free of leaves, I'll still leave it in the auto mode. Even on clean roads, the auto mode could help in emergency maneuvers.
 

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all of the write ups and stories I have read about the SX4 is that it is a Gas Hog. But my feelings are, if you want 40 plus MPG, go buy a TDI VW.

If you want an all-weather vehicle that costs less than a Impreza, buy an SX4.

Leaving it in 2wd will always get you better mileage, due to less mechanical components making contact, hence less friction.
 

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consider this link Best Gas Mileage Four Wheel Drive
the next time you feel like the mpg for this car isnt great. its on the top of the list of AWD/4WD vehicles next to an Audi!
 

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I actually haven't been too overly thrilled with my gf's mileage in the SX4. I honestly thought it would have been decently higher for what the car is. She does a mix of city and highway driving, and is just a hair over 24 mpg. I'm going to assume it has a lot to do with how heavy the car is.

--Adam
 

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I have never averaged above 28MPG in all highway driving. It's Ok, but I would of assumed for it's size and engine size, the all highway would of been in the 30s. Using all synthetic oils as well and AWD or not. Always avergae the same 27 - 28.
 

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AWD All The Time

I have heard rumors that the car gets better gas mileage if you leave it in AWD. This sounds like crap to me, but I was wondering if anyone has tried it.
I am testing this theory as well. I have found that once I filled up the tank and reset the MPG display and traveling rural to city and back about 10 to 20 miles round trip. Speeds range from 35 to 55 MPH. I went from 26-27 FWD ONLY to 27-28 AWD AUTO. I have yet to try highway.
 

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I am testing this theory as well. I have found that once I filled up the tank and reset the MPG display and traveling rural to city and back about 10 to 20 miles round trip. Speeds range from 35 to 55 MPH. I went from 26-27 FWD ONLY to 27-28 AWD AUTO. I have yet to try highway.
The round trip may have had different slopes, or wind effects, or traffic lights, or traffic patterns, etc. It is simply a bad set of data. There is no way adding the extra friction in AWD will improve gas mileage. I've used the instantaneous display on flat roads and switched back and forth between AWD & FWD and AWD was slightly worse. AWD might only get you better mileage in slippery conditions. Even Suzuki says mileage is slightly worse in AWD.
 

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The round trip may have had different slopes, or wind effects, or traffic lights, or traffic patterns, etc. It is simply a bad set of data. There is no way adding the extra friction in AWD will improve gas mileage. I've used the instantaneous display on flat roads and switched back and forth between AWD & FWD and AWD was slightly worse. AWD might only get you better mileage in slippery conditions. Even Suzuki says mileage is slightly worse in AWD.
I am only giving my factual statiscal information that I am experiencing. It may get worse or it may get better. I am not a car specialist. I do know what i see on the display and I figure the computer is smarter than I am and it seems better when the cruise is on. Also want to mention this is a 4 speed automatic. Go figure...we will just have to see. I will keep you posted. I have had the car now for 1 month and 3 weeks now. Thanks for the reply:)
 

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We get roughly 30 mpg average, 2wd or AWD. It looks like the gas mileage is slightly better in 2wd mode, but I'm not sure it's a statistically significant difference. This car REALLY needs a 6th gear and some different ratios.

It's 30 miles into town on a two lane road which tends to have a lot of truck traffic and not very many places to pass - when we cruise around at about 53 mph, we average around 35 mpg, which is good enough to convince us to stick to lower speeds. Can't convince myself of that when I'm late or driving 300+ miles, but the majority of trips into town I can.

And, wow, a roof rack with two mtn bikes on it kills the mileage, as does a roof load of snow. Plus the roof racks sing (without the rubber strips in place) and howl (lower in tone, with the rubber strips on).

2008 SX4 Crossover "Mighty Zoot" volcanic cinder orange, the same color as the road outside our house...
 

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It seems to show on the display that once the switch is set from FWD to iAWD the gas mileage goes higer in real time but after driving a tank it actually went down about 1.5 to 2 miles to the gallon less. FWD 27mpg iAWD 25mpg. Either way this is far better than the last car I had. Cruise does seem to handle the vehicles gas mileage better than my foot.
 
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