R60 400 miles on one tank!
Well not quite, but only a few miles shy -- didn't want to push my luck driving 10 miles to reach Sam's Club.

Dunno how I did it but I'm happy to see those big numbers!
Just dropped in 12 gallons to top off the tank so it works out to 34.5 MPG if you include the remaining range, 33 without -- I don't hyper-mile, but I also don't lead-foot it. Mostly highway speeds (I try not to go more than 10 over) with at least an hour stuck in miserable stop and crawl traffic.
And my GPS tells me that my speedo reads 2 MPH slow...

Dunno how I did it but I'm happy to see those big numbers!
Just dropped in 12 gallons to top off the tank so it works out to 34.5 MPG if you include the remaining range, 33 without -- I don't hyper-mile, but I also don't lead-foot it. Mostly highway speeds (I try not to go more than 10 over) with at least an hour stuck in miserable stop and crawl traffic.
And my GPS tells me that my speedo reads 2 MPH slow...
So that's about 650 KM for those of you playing along north of the 49th... I could routinely get 650 KM / tank in my Cooper S Clubman. If I can get close to that in a Cooper S Countryman All4, I'll be right pleased!
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I wish I could drive more highway.. I saw 171 miles for my last 10.5 gals.. That sucks and I never use the sport button. Better than the 12 mpg my BMW 540i got..
I am going to have to try and go super easy for a whole tank and see what I get. I know I get great mileage on the highway, its around town that I see most of my miles.
Congrats on the 400. The worlds a little greener.
I am going to have to try and go super easy for a whole tank and see what I get. I know I get great mileage on the highway, its around town that I see most of my miles.
Congrats on the 400. The worlds a little greener.
Whoop, nice catch! I knew there was something I left out... I row my own, thanks!
I just finished my first long trip with the Blue Bomber, and it averaged a bit over 32MPG over a 590 mile trip. Average speed was a touch over 70mph, with bursts over 85. (Breaking it in, so we can't set the cruise yet...)
I can't complain. I just wonder what it would have done if I kept it at the speed limit.
All4, manual tranny, 17" all seasons.
Mark
I can't complain. I just wonder what it would have done if I kept it at the speed limit.
All4, manual tranny, 17" all seasons.
Mark
For best MPG accuracy, make sure to zero-out the average MPG and average speed at each fill-up. Do not rely on the computer's numbers until you have hand-calculated several tanks and know the error %.
Also, FWIW, the manual warns about letting the miles until empty go below 30. Something about the "systems" not being guaranteed to operate properly. I have no idea what "systems" means!
BTW -- Miles until empty should not be used in an MPG calculation; you need to keep it to actual miles of fuel consumption, not including potential miles.
And remember, miles left in the tank is calculated by current tank level times the rolling value of the calculated MPG over just the last 18 miles!
Also, FWIW, the manual warns about letting the miles until empty go below 30. Something about the "systems" not being guaranteed to operate properly. I have no idea what "systems" means!
BTW -- Miles until empty should not be used in an MPG calculation; you need to keep it to actual miles of fuel consumption, not including potential miles.
And remember, miles left in the tank is calculated by current tank level times the rolling value of the calculated MPG over just the last 18 miles!
Last edited by Koopah; Jun 21, 2011 at 04:20 AM.
Did the 600+ mile trip from Pittsburgh to Boston and had it up to 38.???? miles/gallon... Finally made it to the 1200 mile break-in during this trip. We'll see how it goes on the return trip.
Stick, turbo, didn't hit the sport button....only premium gas. And of course, 99% highway.
Now driving around Boston, not even checking
Stick, turbo, didn't hit the sport button....only premium gas. And of course, 99% highway.
Now driving around Boston, not even checking
How do you reset the ave MPG? I reset my trip but i couldn't figure that out, and I haven't looked in the book yet 

For best MPG accuracy, make sure to zero-out the average MPG and average speed at each fill-up. Do not rely on the computer's numbers until you have hand-calculated several tanks and know the error %.
Also, FWIW, the manual warns about letting the miles until empty go below 30. Something about the "systems" not being guaranteed to operate properly. I have no idea what "systems" means!
BTW -- Miles until empty should not be used in an MPG calculation; you need to keep it to actual miles of fuel consumption, not including potential miles.
And remember, miles left in the tank is calculated by current tank level times the rolling value of the calculated MPG over just the last 18 miles!
Also, FWIW, the manual warns about letting the miles until empty go below 30. Something about the "systems" not being guaranteed to operate properly. I have no idea what "systems" means!
BTW -- Miles until empty should not be used in an MPG calculation; you need to keep it to actual miles of fuel consumption, not including potential miles.
And remember, miles left in the tank is calculated by current tank level times the rolling value of the calculated MPG over just the last 18 miles!
BTW, there is some really good information in the manual. Problem is, it's hard to stop driving long enough to start reading!
I had the same 34.5 on a nice long trip- So happy... 4 people and a full boot and Auto tranny. What I found funny was how the AC and lights changed the MPG when on VS off. The biggest increase came after turning off the AC then watched it drop a little after turning on the lights.
Wow.. I don't know how everyone gets such great mileage. On a full tank I'm lucky to hit 250ish.. I do mixed highway and city driving I'm getting 22-24 if I'm lucky!
Mini Cooper Country S auto - no lead foot either!
Mini Cooper Country S auto - no lead foot either!
To compare mileage figures among drivers is an interesting proposition. There are, of course, the differences between MPG figures in the US and any country that uses IMperial gallons (US-MPG to IM-MPG = US-MPG * 1.2, IM-MPG to US-MPG = IM-MPG / 1.2). Even within the US, however, the variables make it rather difficult to compare mileage:
So, it is almost impossible to compare real world numbers in order to do an analysis of how YOUR car's efficiency compares with other's. After all, even the EPA have taken quite some time to develop their equipment and methods toward that exact same goal: trying to eliminate the variables when comparing Car A to Car B!!!
We all know how to adjust the above variables to gain maximum performance and, conversely, how to gain maximum mileage. No matter which driving style you are using, there are some things you can do to get better (more accurate) data about your MPG. Following is the method that I use when at the pump.
Being OCD, I enter all this data into a spreadsheet and use it to compare (or "profile") my car's performance over time. However, you can use the data recorded on the receipt for a simple, hand calculated MPG figure (divide trip odometer reading by gallons used to fill-up). In most cases, that figure will be quite a bit more accurate that the figure reported by the computer.
My '04 MCS JCW computer reports a fairly consistent 8% more optimistic MPG reading that actual (hand-calculated) MPG. If I don't reset the average MPG and average speed at fill-ups, the computer's figure is REALLY off!
On the other hand, my BMW R1200RT's computer is only 0.04% optimistic!
- Degree to which the car has been run-in (at least 10k miles for best data);
- MPG reporting method (computer vs. hand calculation);
- Reset interval of average MPG and average speed;
- Model (CM, CM-S, CM-S All4);
- Transmission;
- Car settings (AC on or off, sport button, 4WD auto-activated during tank);
- Driving conditions (%city and %highway);
- Driving style (stoplight GP, hypermiling, etc.);
- Fuel AKI;
- Other...
So, it is almost impossible to compare real world numbers in order to do an analysis of how YOUR car's efficiency compares with other's. After all, even the EPA have taken quite some time to develop their equipment and methods toward that exact same goal: trying to eliminate the variables when comparing Car A to Car B!!!
We all know how to adjust the above variables to gain maximum performance and, conversely, how to gain maximum mileage. No matter which driving style you are using, there are some things you can do to get better (more accurate) data about your MPG. Following is the method that I use when at the pump.
- Get a printed receipt from your fill-up and write the current odometer reading on it;
- Write the trip odometer reading on the receipt;
- Note the fuel's AKI rating on the receipt (if not already listed);
- SAVE the receipt;
Before leaving the pump:
- Reset the trip odometer to zero;
- Record the computer's MPG figure;
- Zero-out the computer's MPG figure;
- (Optionally) Record the computer's average speed figure;
- Zero-out the computer's average speed figure (must do);
Being OCD, I enter all this data into a spreadsheet and use it to compare (or "profile") my car's performance over time. However, you can use the data recorded on the receipt for a simple, hand calculated MPG figure (divide trip odometer reading by gallons used to fill-up). In most cases, that figure will be quite a bit more accurate that the figure reported by the computer.
My '04 MCS JCW computer reports a fairly consistent 8% more optimistic MPG reading that actual (hand-calculated) MPG. If I don't reset the average MPG and average speed at fill-ups, the computer's figure is REALLY off!
On the other hand, my BMW R1200RT's computer is only 0.04% optimistic!
Last edited by Koopah; Jun 29, 2011 at 07:52 AM.
(Yes, I drove it very conservatively.)




