I just turned over 1,000 miles after about 2-weeks since picking up. Still getting around 32 mpg. So far very happy with the MPG's

 

Just had a MINI rally and motored from Grand Rapids to Traverse City via highway and back roads. Trip was 432 miles and got 29.5 MPG

 

We just visited the North Carolina Museum of Natural Science in Raleigh and traveled 650 miles total. Our best was 33 mpg and our worst so far has been 25 mpg. Of course in the hot Carolina sun we have the AC blasting. My husband and I are really loving our CM. Our 6 year old twins love it also.

 

Well, my must substantial highway trip so far - about 300 miles on mostly ethanol-free gas. Not much stop and go, mostly 55-77 mpg. The computer says i'm getting 32-33 range, which I'm pretty happy with. (Started the trip with approx 3500 miles on the car.)

Will be checking more intricately when the next fill-up occurs.

Pretty happy with this!

 

I am getting about 28 calculated at the gas station after fill-up. My car computer it telling me about 26.5. Is that the overall average or what? I have looked at the "ever-changing" moment to moment reading, and if you watch that it can drive you nutz! I'm OK with 28 mpg around city driving, and am looking forward to a real road trip soon.

 

On a mixed drive, we got 33.6 mpg a tank ago. Pretty happy thus far and can't wait to try a full highway tank.

 

Well, my first extended road trip - over the course of 10 hours on mostly interstate or similar roads, I've averaged just under 32 mpg. Typically at the speed limit or slightly over, which ranges from 55-70 mph, depending upon the road.

Pretty happy with that - my average day-to-day driving, in town and some local higher speed roads, is pretty consistent at just under 25 tank after tank.

And this is with 6-speed manual and All4.

 

I have about 1,300 on my base Countryman and I've managed 32mpg's on the last two tanks. Mostly highway, 70-80mph with some dense city, some days with A/C on some days without.

 

Interesting to see your comment about A/C being on or not..... i have often wondered if that makes a difference. I think I have read that the AC on is acutally better than windows open for optimal gas mileage. Of course, that leads me to believe that a cool day, windows up and AC off would be best. Anyone care to comment?

 

My first average is 25MPG... but going to the mountains but very fast driving and AC..(sometimes 140-150 km/h). no bad consumption if I compare with my smart forfour brabus... very reasonable... less consumtion ... for more... room.. and awd..
Happy with..

 

I have approx. 3300 miles on my base CM, and am averaging right at 30mpg, mixed in town/ highway driving. I've rarely used the sport button, which is painful but I've been trying to do everything I can to get better mileage. :( The best I've gotten is 32, on a mostly 55mph "country roads" trip. I'm in NC where it's 99 degrees, and I have a 10 month old in the back, so the AC is pretty much a must-have the majority of the time.

 

To compare mileage figures among drivers/vehicles 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 a country that uses the same-sized gallons, the many existing variables make it rather difficult to compare mileage:

• 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, %highway, mountainous, flat, etc.);
• 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.

1. Get a printed receipt from your fill-up and write the current odometer reading on it;
2. Write the trip odometer reading on the receipt;
3. Note the fuel's AKI rating on the receipt (if not already listed);
4. SAVE the receipt;
   
   Before leaving the pump:
   
   
5. Reset the trip odometer to zero;
6. Record the computer's MPG figure;
7. Zero-out the computer's MPG figure;
8. (Optionally) Record the computer's average speed figure;
9. 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!

 

Not sure if you are using a smart phone or not, but if you have an iPhone there is an app called "Gas Cubby" that just about does what your talking about. I highly recommend it for tracking. Even provides nice graphs to see the performance over time.

 

Yeah, I looked at an early version of this app and put it on my "possible apps" list. Frankly, I haven't revisited it but you have given me a reason to do so!

Thanks!

 

Using Gas Cubby, so far my overall average (just over 2500km's on my All4 s) is right on 8L/100km - 29.4 MPG US. My best tank was 7.3L/100KM - 32.2 MPG US. Most of the driving has been with 4 people and luggage in the car, too.

 

I've been watching the computer MPG number and wonder how it is calculated and over what time period? Is there a specific look-back distance - say, over the last 20 miles - or is it since the last reset?

 

Pretty sure it's the last 30km/20mi - I saw some mention in the owner's manual.

 

Per the manual:



The Average Fuel Consumption refers to "the time the engine has been running". Hmmm. Does this indicate a "Hobbs Meter" average, i. e.; the average MPG of ALL the times the engine has been running? If so, it's no wonder that I can improve the MPG accuracy of the OBD by resetting the Average Fuel Consumption each time I fill up!

So, hypothetically, if I start the engine for the first time in its life (zero miles) and drive 9 tank-fulls on the highway at 30 mpg, then drive a last tank-full in stop-and-go traffic at 18 mpg, my Average Fuel Consumption reported at the end of the tank will be 28.8 mpg. In reality, however, I only got 18 mpg from the last tank! This is why I reset Average Fuel Consumption at each fill-up!

Start your engine without moving. Check the AFC. Is it zero? It should be! You haven't yet achieved any distance data for the ODB to use in it's calculations. I'll bet yours doesn't show zero until you reset it!

Note that it is the "Cruising Range" that is the rolling average (in miles) over the last 18 miles/30km. (only!).

 

I do reset my avg consumption at each fill-up. So far, the average fuel consumption figure seems to match up pretty close to my calculated actual mpg each fill-up. But the cruising range is always WILDLY optimistic - regardless of how I drive - enough that it is utterly useless until it gets down to about 5 miles - in which case I've actually got about maybe 5 blocks remaining.

 

First tank. Computer showed 21.5 mpg. Calculations came out to 20.3. Pretty much all city driving. I'm really hoping the mpg gets much much better.

 

We're getting pretty similar with around town (zippy) about 25 [1 and 2 people] and best on the road (just finished 1000 mile trip) around 33 (55-75) [2 and 3 people], with 7000 miles on the CM4 manual.

 

not sure if this has been mentioned already but the number and weight of the occupants in the car is a variable. so if one is calculating mileage with one occupant is going to be different with more than one occupant because of the extra weight. just another thing to consider.

 

I've been getting 28+ (real calculation) since taking off my roof rack. I get even better if I shift in a much lower RPM band and really take care to decelerate effectively and keep my top speed slightly lower. The Minimalism Analyzer really helped with that. I didn't realize that I could smoothly accelerate in the 1000 to 2000 RPM band. There's no power for any serious peppiness there, but it's a very efficient way to drive.

 

I am getting 27 with half city and half highway everyday to/from work. I got 32ish on highway only trip earlier this month. So my results are similar.

 

In this household, it really depends on who is driving
Wife will typically see lower MPG than I do in the same car – often more than 2 MPG.
I anticipate conditions and lift to reduce consumption instead of rolling up on something and braking, accelerate using less of the skinny pedal, and use cruise control anywhere possible to avoid inadvertently speeding up and slowing down.
Then, I take all of the $$$ I have saved (plus much more) and spend it on a trip to the Dragon and see 21 MPG for that tank