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F07 Gran Turismo (2010 - Current)
The 5 Series Gran Turismo -- now available in the USA as a 535i, 550i and 550i xDrive model.

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  #1  
Old 02-08-2013, 06:22 PM
DocHilgers DocHilgers is offline
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Gas mileage?

Hi,
Just got my 2013 535i GT (yeah, finally)!
How long does it take to reach the gas mileage of 30 MPG?
I am now at 1000+miles and I am still getting 23 MPG at best (driving in the most economic way I can).
The dealer gives me a bunch of lip service every time I ask.
Any suggestions?
Thanks!
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  #2  
Old 02-08-2013, 06:38 PM
jadnashuanh jadnashuanh is offline
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I've reached that a few times, but only while using the cruise on a long trip on the interstate. Around town, any stop and go, and the weight of the vehicle is going against you - while it doesn't take all that much to keep going, it certainly does to get it there. And, anything much over 70mph, and you'll likely never reach that figure. Remember, the EPA test are run at lower speeds, and low, constant speeds are good for mileage on any vehicle. Also, you likely won't reach that in the wintertime. A more 'normal' mileage for me (I have an x-drive, which is lower than your rear-wheel drive vehicle) is 26-28 on a trip. Winter tires and bad weather affect things.
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  #3  
Old 02-10-2013, 06:31 AM
mycabrandz mycabrandz is online now
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+1 @Jad.

I think most people assume the manufacturer rating is what is to be expected. My 2012 non-xdrive is rated at 19 city and 28 highway (iirc). With a one way 12 mile commute in stop and go SF bay area traffic, I get about 21 to 22mpg actual (measured by fuel consumption relative to miles traveled, not by idrive calculation). After the first 4000 or so miles tweaking my driving style for better mileage, I gave up checking the mpg and started appreciating the drive a lot more. Its hard looking at the efficient dynamics meter on the gauge cluster and at the same time quickly maneuvering lanes in traffic while engaged in Sport+ driving mode.

The only few occasions I check the mpg is when we head down to Disneyland in Southern California. I reset the idrive and try to beat our previous trip's mpg. I get between 28 to 31mpg purely hwy. Sometimes I get less. 70mph on I-5 for an autobahn proven GT just wont do.
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  #4  
Old 02-13-2013, 08:56 AM
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mason mason is offline
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They are inefficient in my eyes.
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  #5  
Old 02-13-2013, 12:12 PM
jadnashuanh jadnashuanh is offline
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Quote:
Originally Posted by mason View Post
They are inefficient in my eyes.
For their size and weight, and with the V8, it can be surprisingly efficient on a long trip. But, put it in stop and go, or a heavy foot, and it will suck fuel. Want to have better fuel economy, petition BMW for the diesel...the 535d has about the same torque as the v8 which is what gets you going, and the fuel economy of a much smaller car. If we do ever get a diesel in these, it will more likely be the 530d which has more torque than the 535i, but not quite as much as the 550i and is down on power some. On the EU extraurban cycle, the 530d gets amazing mileage, and much better in the urban cycle, too.
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  #6  
Old 02-13-2013, 04:23 PM
kjmurphy kjmurphy is offline
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Just under 29K miles and the computer says I am getting 24.6 mpg. Pretty good for such a large car. BTW- it is a 535 xDrive.
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  #7  
Old 02-13-2013, 04:39 PM
jadnashuanh jadnashuanh is offline
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At least on mine, the car computer is somewhat optimistic (from taking gallons/miles pumped in to refill), but that's about what the EPA rating for the vehicle is on combined. On short trips, mines a little lower, and on long ones, higher, I do not know what the overall average has been, but would guess in your range.
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  #8  
Old 02-14-2013, 07:25 AM
Firstgt Firstgt is offline
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I am in a 2011 535i gt xdrive. Highway cruising i get down to around 8 to 8.5 L per 100 km. pure city stop and go i am over 13 L, very thirsty! Overall i get around 11.3. I have had the car 5 months and have stopped trying to save gas in the city as it is a struggle. Takes a lot of gas to get this big car moving in stop start conditions. Also so much more fun in sport mode so it is tough to drive it conservatively.
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  #9  
Old 02-15-2013, 08:17 AM
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mason mason is offline
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Quote:
Originally Posted by jadnashuanh View Post
For their size and weight, and with the V8, it can be surprisingly efficient on a long trip. But, put it in stop and go, or a heavy foot, and it will suck fuel. Want to have better fuel economy, petition BMW for the diesel...the 535d has about the same torque as the v8 which is what gets you going, and the fuel economy of a much smaller car. If we do ever get a diesel in these, it will more likely be the 530d which has more torque than the 535i, but not quite as much as the 550i and is down on power some. On the EU extraurban cycle, the 530d gets amazing mileage, and much better in the urban cycle, too.
Well, I've done several pure highway runs on a full tank of gas. The best is about 23 mpg, worst was 18 mpg. Most of time, highway mpg is 19-21 mpg. City and highway combined is 15-16 mpg. I do admit 65-70 mph is not my thing. If the road is empty, I am doing 85-90. But if you tell me to drive slower then there is no point to get a V8.

I was part of the focus group research by BMW about GT. That was the first thing I said, bring diesel over. I also told them, they would need to shed some weight on the car.

Let me share this story that started my obsession with diesel. I picked up this GT via European Delivery. I was in Northern Italy, very close to South Tyrol region. The road was empty and I was chucking along at 110 mph. All the sudden a 530d GT blew by me. I pedal-to-the-metal and got the car to 130 mph but I didn't feel I was closing the gap.

Few years have gone by, my lease is about to conclude. I just got a MB GL350 Bluetec. Awesome. This car is even heavier and less aerodynamic than GT, it yields 20-21 mpg combined and 24 mpg highway. NYT article averaged 26 mpg on highway, I haven't done that. I am trying.
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Last edited by mason; 02-15-2013 at 08:19 AM.
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  #10  
Old 02-15-2013, 01:35 PM
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GTitis2013 GTitis2013 is offline
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Quote:
Originally Posted by mason View Post
Well, I've done several pure highway runs on a full tank of gas. The best is about 23 mpg, worst was 18 mpg. Most of time, highway mpg is 19-21 mpg. City and highway combined is 15-16 mpg. I do admit 65-70 mph is not my thing. If the road is empty, I am doing 85-90. But if you tell me to drive slower then there is no point to get a V8.

I was part of the focus group research by BMW about GT. That was the first thing I said, bring diesel over. I also told them, they would need to shed some weight on the car.

Let me share this story that started my obsession with diesel. I picked up this GT via European Delivery. I was in Northern Italy, very close to South Tyrol region. The road was empty and I was chucking along at 110 mph. All the sudden a 530d GT blew by me. I pedal-to-the-metal and got the car to 130 mph but I didn't feel I was closing the gap.

Few years have gone by, my lease is about to conclude. I just got a MB GL350 Bluetec. Awesome. This car is even heavier and less aerodynamic than GT, it yields 20-21 mpg combined and 24 mpg highway. NYT article averaged 26 mpg on highway, I haven't done that. I am trying.
Thanks to all for sharing here.

There is no doubt that fuel efficiency in a diesel is clearly superior, particularly if driven on the highway a lot. This aspect together with the torque advantage are the reasons that the majority of big luxury cars in Germany run diesel.

My family and I fell in love with the GT (for me admittedly not a love at first sight) while driving 1 week across Germany last year in a rental 530d GT. This engine ran so smoothly and its torque made it absolutely capable of handling the weight of the car. The engine was barely audible at Autobahn speeds of 100 -130 mph and the available power felt always sufficient. Since this car can easily go above 130 mph your encounter with 530GT in Europe doesn't surprise me.

That said, the currently offered US diesel option, at least in the X5, is slighlty less convincing. We have an X5 35d that my wife mostly drives and while we are overall satisfied, it doesn't compare in refinement to a large gasoline engine or other diesels I drove (e. g. the mentioned 530d GT). It may have to do with suboptimal insulation due to the X5 body design, but it feels relatively rough, particularly at lower speeds. Also, the mpg advantage doesn't fully play out in mostly city driving.

BMW's decision to bring over the less powerful but newer in concept 3.0 diesel in the 5 series may therefore not be a bad idea if fuel economy is a priority. Maybe this engine will eventually be offered in the 5 GT also.
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  #11  
Old 02-15-2013, 02:32 PM
jadnashuanh jadnashuanh is offline
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While it's my understanding that the gasoline engines that come here are nearly identical to their EU versions, the diesel engines we've gotten so far are unique to the USA, and thus, there isn't as much incentive to bring more over. Even though the US now dictates lower sulphur diesel fuel, it is still quite a bit dirtier than the EU supply, which is the bigger reason they don't use the same engine here as there.

Because a diesel is so efficient at idle, the city mileage typically is much better than a comparable gasoline engine version. Also, diesel has a significant energy density increase over gasoline, so it should produce more miles/gallon than gasoline. The refineries in the EU are optimized to produce more diesel from the mix than ours, and we fight with heating oil in the winter for our diesel for vehicles. It will take new refineries to make a more stable diesel supply and cost structure here.

That being said, I still would have preferred a 530d over the 535i GT I purchased, especially if the cost differential was similar to what it is elsewhere. I think the reason they charge so much extra for the diesel here is the engineering required to make it work here with our fuel is spread out over so few sales verses in the EU, where diesel predominates - the economy of scale come more into play.
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  #12  
Old 02-15-2013, 02:40 PM
jadnashuanh jadnashuanh is offline
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Quote:
Originally Posted by mason View Post
Well, I've done several pure highway runs on a full tank of gas. The best is about 23 mpg, worst was 18 mpg. Most of time, highway mpg is 19-21 mpg. City and highway combined is 15-16 mpg. I do admit 65-70 mph is not my thing. If the road is empty, I am doing 85-90. But if you tell me to drive slower then there is no point to get a V8.
I did drive mine on the Autobahn after pickup, and while I didn't exceed the 100mph (160k/hr) max speed recommended during the breakin, I did drive awhile at that speed and often over 80. With a virgin 535i, on that trip, I averaged about what you did on your V8, about 24mpg. Note, the x-drive is about 8-10% worse mileage than the rear-drive, and mine's an x-drive.

No vehicle gets great mileage at 85-90mph. Anything over 70mph or so and the drag becomes a MUCH bigger factor. The forces increase exponentially, so a little goes a long ways...So, if you chose to break the laws of the country, you end up paying for it one way or the other. The 535i will cruise at 100mph and faster, but it will get better mileage while doing it. Save the high speeds for the track...you don't need the V8 to cruise at 85-90.
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  #13  
Old 02-19-2013, 10:44 AM
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mason mason is offline
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Quote:
Originally Posted by jadnashuanh View Post
I did drive mine on the Autobahn after pickup, and while I didn't exceed the 100mph (160k/hr) max speed recommended during the breakin, I did drive awhile at that speed and often over 80. With a virgin 535i, on that trip, I averaged about what you did on your V8, about 24mpg. Note, the x-drive is about 8-10% worse mileage than the rear-drive, and mine's an x-drive.

No vehicle gets great mileage at 85-90mph. Anything over 70mph or so and the drag becomes a MUCH bigger factor. The forces increase exponentially, so a little goes a long ways...So, if you chose to break the laws of the country, you end up paying for it one way or the other. The 535i will cruise at 100mph and faster, but it will get better mileage while doing it. Save the high speeds for the track...you don't need the V8 to cruise at 85-90.
I agree that's why this is likely to be my last V8. I'm more than happy with my GL350. I've been getting 23+ mpg for cruising over somewhere between 78 and 85, depending on the traffic flow and cops.

I'm well aware of speed and mpg relative to law of physics. My biggest complaint is the combined mpg. It is somewhere 15 to 16 mpg. If I ran into bad traffic cingestion a few times, it could run 13 mpg for the tank (I'm talking about no driving above 80 mph). If I could get consistent 19-21 mpg, I'd have been fine with it.
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Last edited by mason; 02-19-2013 at 10:51 AM.
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  #14  
Old 02-14-2013, 05:32 PM
katiesdad7 katiesdad7 is offline
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My 550 gets about 21 overall. Now my Prius gets about 50!
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