What is your MPG?????

2012 535i xdrive
21.2 MPG
5,050 miles combination of city/highway
purchased
93 oct at Shell or Costco Premium

Originally Posted by RambleJ

2012 535i
iDrive says average 16.9 mpg
10980
93 oct
Always drive in sport or sport+

You pay attention to that...? Fill up the car and reset the trip meter. Lets see what you really get - especially now that I have your tune

2013 535i (6MT)
25 mpg (75% Highway driving)
2600
Purchased
Shell 93 Octane
Mostly Sport Mode

2012 550i
21.3 average (70% comfort mode / 30% sport)
8400 miles
Purchased
91 Premium from Shell or ConnocoPhillips

2012 528i
31 average (comfort mode 80% Hwy 20% city)
15000 miles
Purchased
93 octane premium from Shell or BP

MPG calculation done with calculator - not on car computer which is about 5% optimistic

By the way - I tried 89 octane on 3 tanks. Lost about 4% mpg. Considering the 4% extra cost using 89 octane, 93 octane is about the same cost in the end.

2011 535i 6M
17.2 mpg
5,500 mi
Bought
93 octane

why does it matter if you bought or leased?

1- 2011 550xi Dinan S3
2- 21mpgs
3- 32,000
4- Bought (and then sold)
5- 93 - usually Shell or BP

I see some folks who question the car's calculated mpg. I seriously doubt if it is off by much at all, and it's likely to be as accurate as using the calculator method. If you calculate by "hand" are you sure your filling up the tank to the same level every time? Have you checked to see if the odometer is accurate?

The reality is that with the current electronics and information supplied on-line they very accurately measure how much fuel is being electronically metered to the engine. I'm sure there could be some variance, but it's very unlikely they are off by more than 1-2%. While I don't use a calculator, I frequently run the numbers in my head, and I've always done it. They aren't off by much.

2012 535i M-Sport
24 MPG (60% comfort, 35% sport, 3% Eco pro, 2% sport+)
17,000 miles
Paid in full
91 or 93 premium unleaded (10% Ethanol) BP Fuel - Our area has gone all Ethanol...I can definitely tell a difference when I get regular non-Ethanol fuel (better gas mileage and performance)

Originally Posted by jjsC6

I see some folks who question the car's calculated mpg. I seriously doubt if it is off by much at all, and it's likely to be as accurate as using the calculator method. If you calculate by "hand" are you sure your filling up the tank to the same level every time? Have you checked to see if the odometer is accurate?

The reality is that with the current electronics and information supplied on-line they very accurately measure how much fuel is being electronically metered to the engine. I'm sure there could be some variance, but it's very unlikely they are off by more than 1-2%. While I don't use a calculator, I frequently run the numbers in my head, and I've always done it. They aren't off by much.

Do you know when the computer begins the calculation or over how long a period it averages?

What you are saying is true in the long run, but not in the beginning.

Originally Posted by jjsC6

I see some folks who question the car's calculated mpg. I seriously doubt if it is off by much at all, and it's likely to be as accurate as using the calculator method. If you calculate by "hand" are you sure your filling up the tank to the same level every time? Have you checked to see if the odometer is accurate?

To ensure accuracy, I record every gallon of fuel and every mile driven for a year or better. I typically check my odometer's accuracy using highway mile markers for at least a ten mile stretch. So yeah, I think the hand calculations are fairly accurate.

Originally Posted by jjsC6

The reality is that with the current electronics and information supplied on-line they very accurately measure how much fuel is being electronically metered to the engine. I'm sure there could be some variance, but it's very unlikely they are off by more than 1-2%. While I don't use a calculator, I frequently run the numbers in my head, and I've always done it. They aren't off by much.

My 335d's computer varied up and down, tended to read just a bit pessimistic. The 550 read just a bit optimistic. Although I only have a few data points, my X5M's computer is displaying 0.5 to 0.8 mpgs optimistic.

2011 535d
29mpg daily drive, 40mpg highway
Diesel
Leased
36k klms on the clock but I have only had it for 1.5k

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2012 550xi DS2
19.1 mpg
14,900 miles
purchased
93, usually Valero

I mostly drive in Comfort or Sport with suspension settings only.

Dunderhi and German, you are inspirational. Looks like i'm spending to much time in the Starbucks' drive-thru and not enough on the open road. Although open road and northern NJ don't really go together.

2012
535xi m-sport
one week commute 990 miles
29mpg
85%highway 15% city
eco mode
sonoco ultra 93

Originally Posted by jjsC6

I see some folks who question the car's calculated mpg. I seriously doubt if it is off by much at all, and it's likely to be as accurate as using the calculator method. If you calculate by "hand" are you sure your filling up the tank to the same level every time? Have you checked to see if the odometer is accurate?

The reality is that with the current electronics and information supplied on-line they very accurately measure how much fuel is being electronically metered to the engine. I'm sure there could be some variance, but it's very unlikely they are off by more than 1-2%. While I don't use a calculator, I frequently run the numbers in my head, and I've always done it. They aren't off by much.

I kept track for several tanks and the car was off an average of 4% - read high. I used the below method to reset the car with great success.

Mine read 4.0 high. I found the below procedure worked to reset the gas MPG computer.

1. Hold down the odometer reset button and turn the ignition on by pushing start/stop button.

2. Release the odometer reset button, and you should see a menu of 4 items on the dashboard. From here on, use the odo-reset button to advance to the next entry through a short press, and to select through a long press.

3. Choose the one that says Unlock through the above, which will take you to a passkey screen. Your passkey is the sum of the last 5 digits of your VIN. Increment the two-digit number until you get to it, and with the long press of the odo button, select it.

4.Then scroll down to correction factor and modify it from 1000 to whatever you require.

My car claimed more mpg than it was actually delivering by about 4.0%. I changed the 1000 to 1040 and it now seems about right.

If your trip computer reads higher than true figures worked out, make the correction over 1,000. If your trip under reads, make the correction number under 1,000.

1- 2013 528xi
2- 23mpg
3- 3,000
4- Paid cash
5- 93 octane (Sunoco)

2011 550i Auto
21.2 mpg, 50% city
50K miles
Bought
93 premium

2013 535i xdrive
23.5 mpg (65 to 70% city)
10500 miles
Purchased
93 Sunoco (typically)

Surprised to see all those 550s over 20mpg. Nice!!


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Originally Posted by jjsC6

I see some folks who question the car's calculated mpg. I seriously doubt if it is off by much at all, and it's likely to be as accurate as using the calculator method. If you calculate by "hand" are you sure your filling up the tank to the same level every time? Have you checked to see if the odometer is accurate?

The reality is that with the current electronics and information supplied on-line they very accurately measure how much fuel is being electronically metered to the engine. I'm sure there could be some variance, but it's very unlikely they are off by more than 1-2%. While I don't use a calculator, I frequently run the numbers in my head, and I've always done it. They aren't off by much.

I agree and confirmed as well. Calcs give me slightly better, about ~2%


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2011 528i
23.92 mpg (60/40 city-highway commuting)
19232 miles
Purchased
93 premium



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Originally Posted by Oz 535d

2011 535d
29mpg daily drive, 40mpg highway
Diesel
Leased
36k klms on the clock but I have only had it for 1.5k

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Are your figures using imperial or US gallons?

Originally Posted by d geek

Are your figures using imperial or US gallons?

According to the conversion tool I used, US gallons, but in metric speak around 8l/100 klms combined and 5l/100 klms highway if you want to double check.



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Originally Posted by Oz 535d

According to the conversion tool I used, US gallons, but in metric speak around 8l/100 klms combined and 5l/100 klms highway if you want to double check.



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Those are impressive fuel economy numbers for a vehicle with so much performance.

The '535d' they are bringing to the states will actually be equipped with the engine the rest of the world would find in a 530d. Still nice, but not the real deal...

1- 2013 550xi
2- Shows 18.1 mpg, 2-4% high, haven't adjusted yet
3- 2800 miles, 85% highway
4- Leased
5- 93 from UDF

Originally Posted by d geek

Those are impressive fuel economy numbers for a vehicle with so much performance.

The '535d' they are bringing to the states will actually be equipped with the engine the rest of the world would find in a 530d. Still nice, but not the real deal...

That's disappointing. I drove the previous 530d and while impressive, it's 'still a diesel' (especially when cold).
The 535d is more refined, especially when cold. And with the 8 speed you are never in the wrong gear.
I guess you aren't getting the 535d because of the cost. Here in Oz they are only about 10% cheaper than a 550i and are dearer than the 535i despite the tax concession.
They have to recover their r&d costs I guess whereas the 530d r&d costs would have been well and truly recovered considering how many years that engine has been in service.

Sorry for going OT

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