Trip MPG
#1
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
I searched "MPG" and found no results. Can't believe that! I know we've had some recent topics about mileage.
Anyhow, this past weekend, I made a round trip, Atlanta to Charlotte and return with some local Charlotte miles.
Overall, in 588 miles, the electronics told me 22.8 MPG and the actual was 21.9 (actual ODO miles/actual pump G).
Does anyone know if there is any way to tweak the electronics to get this closer?
On one leg I did about 200 miles with ACC on at 80 and the electronic average was 25.8. Fairly light traffic.
Of interest, on the return I found a station in SC with regular, 89, at $3.019. Filled up and then saw I pumped part Ethanol? At that price I may have also pumped some water!
Anyhow, this past weekend, I made a round trip, Atlanta to Charlotte and return with some local Charlotte miles.
Overall, in 588 miles, the electronics told me 22.8 MPG and the actual was 21.9 (actual ODO miles/actual pump G).
Does anyone know if there is any way to tweak the electronics to get this closer?
On one leg I did about 200 miles with ACC on at 80 and the electronic average was 25.8. Fairly light traffic.
Of interest, on the return I found a station in SC with regular, 89, at $3.019. Filled up and then saw I pumped part Ethanol? At that price I may have also pumped some water!
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Found this http://forums.e60.net/index.php?showtopic=41536
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
#3
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
Originally Posted by Nephs' post='546991' date='Mar 18 2008, 01:07 PM
Found this http://forums.e60.net/index.php?showtopic=41536
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
I will try again but I got hung up on step #3 when I never did see anything that looked like the sum of the last five on my VIN. I did verify the US/Imp gallons thing.
Thanks for your input.
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
Originally Posted by Nephs' post='546991' date='Mar 18 2008, 01:07 PM
Found this http://forums.e60.net/index.php?showtopic=41536
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
Haven't actually tried this myself but others seem to say it works.
At your own risk though....
#5
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I wonder if the fact that the speedometer is adjusted upwards by 5% (actual 60mph shows as 62.5mph) affects the problem.
When you think that you have covered 62.5 miles in an hour, you have only covered 60 miles. Someone has to account for the extra fuel used in the additional 2.5 miles.
By the way, did the ethanol work (there is some ethanol in all fuel in my area, but probably not as high a concentration as 85/15 which you probably bought)? How did the low grade fuel work overall? BMW always tells us to use premium fuel, but with a leased car, I never do.
When you think that you have covered 62.5 miles in an hour, you have only covered 60 miles. Someone has to account for the extra fuel used in the additional 2.5 miles.
By the way, did the ethanol work (there is some ethanol in all fuel in my area, but probably not as high a concentration as 85/15 which you probably bought)? How did the low grade fuel work overall? BMW always tells us to use premium fuel, but with a leased car, I never do.
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
Originally Posted by monacobmw' post='547510' date='Mar 19 2008, 11:47 AM
I wonder if the fact that the speedometer is adjusted upwards by 5% (actual 60mph shows as 62.5mph) affects the problem.
When you think that you have covered 62.5 miles in an hour, you have only covered 60 miles. Someone has to account for the extra fuel used in the additional 2.5 miles.
By the way, did the ethanol work (there is some ethanol in all fuel in my area, but probably not as high a concentration as 85/15 which you probably bought)? How did the low grade fuel work overall? BMW always tells us to use premium fuel, but with a leased car, I never do.
When you think that you have covered 62.5 miles in an hour, you have only covered 60 miles. Someone has to account for the extra fuel used in the additional 2.5 miles.
By the way, did the ethanol work (there is some ethanol in all fuel in my area, but probably not as high a concentration as 85/15 which you probably bought)? How did the low grade fuel work overall? BMW always tells us to use premium fuel, but with a leased car, I never do.
I did, I think, adjust the ?? using the procedure above and I think it locked in. I wonder, however, if it merely adjusted the miles traveled. I recently verified the ODO mileage with a GPS and found them to be very close. If that correction adjusts the miles traveled to correct the MPG, then the ODO has been screwed up to correct the MPG. That fixes nothing in my book. I will look at the ODO v GPS again.
The ethanol did work ... I made it home! And now I won't know if any change in mileage might be due to the adjustment or the ethanol. I have already pumped straight petrol so the ethanol is history, for now. I really know very little about the effect of ethanol or whatever concentration I pumped.
I have never yet used premium fuel and will accept any criticism for that. I have never heard any combustion knock or ping. The tranny will downshift to prevent the mill from lugging when under heavy load.
This ride cost so damn much money, I can?t afford premium. BTW, I normally pump 87 octane and the blend was 89.
I would appreciate other contributor?s comments on ethanol and lower octane fuel in my Bimmer.
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Originally Posted by sixcard' post='547549' date='Mar 19 2008, 12:50 PM
Some good observations.
I did, I think, adjust the ?? using the procedure above and I think it locked in. I wonder, however, if it merely adjusted the miles traveled. I recently verified the ODO mileage with a GPS and found them to be very close. If that correction adjusts the miles traveled to correct the MPG, then the ODO has been screwed up to correct the MPG. That fixes nothing in my book. I will look at the ODO v GPS again.
I did, I think, adjust the ?? using the procedure above and I think it locked in. I wonder, however, if it merely adjusted the miles traveled. I recently verified the ODO mileage with a GPS and found them to be very close. If that correction adjusts the miles traveled to correct the MPG, then the ODO has been screwed up to correct the MPG. That fixes nothing in my book. I will look at the ODO v GPS again.
It does not make a big difference, but it always helps when you get caught in a radar trap, and you realize that the speedometer setting may have saved you from going over the edge. You cannot change the speedometer setting.
Many of us have wondered whether the setting cheats us of mileage on our leases. The response that we have received so far is that the odometer is set differently.
Best,
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