With 2697 miles at the last fillup, and 108.42 gals = 24.87 mpg. Not bad considering I drive Dingo like I used to ride motorcycles!


Edit: Per Cardiac below - JCWS, prob 70% highway, 70-80mph with occasional spurts to somewhat higher numbers! Avg speed via computer is in the 50mph range overall.

 

Best achieved so far (highway driving):

~330 miles @ 78.0 mph = 29.0 mpg

~280 miles @ 84.1 mph = 24.6 mpg (in the rain)

Daily driving = ~19-21 mpg

 

Out of curiosity, when posting MPG, can you post a guesstimate of HWY Vs local driving, avg speed on the Hwy and if you have a JCW, S or Cooper?

 

wow you must have one faaaaaaaaaaast MINI. too bad it takes more than a whole tank of gas to go one mile

 

I thought I did, in case you were responding to me.

 

I've been getting around 24 in the city but most of my trips are around 10 to 15 minutes so it never really gets warmed up which hurts the mileage.

 

3000+ miles on 2005 MC 5-speed, stock 15" wheels/tires.
I count on over 30 mpg on the highway. So far I've seen as high as 37 for 400 highway miles (first day) and as low as 32 for several hundred highway miles (nasty headwind/80mph).
In town, just over 25 mpg, average speed 17 mph. The computer now reads 27 mpg and it's time to fill the tank again (or I could wait another 90 miles, I guess).
It's not an Economy Car, but the mileage doesn't suck.

 

03 MC,50K miles,filled today,99% highway,70-75 MPH,45 MPG CND.
Flat straight 50 mile runs,no big winds,shifting at 4500 RPM.Thats over 400 miles per tank

 

I met a guy with a 2003 Cooper (not S) yesterday. (I saw his car in a parking and pulled in next to it to take pictures - same paint and stripes as my car!) He had about 21,000 on it and said he typically got in the high 20s. (I don't remember the exact number he said - 27? 28?)

I didn't realize the Coopers (not S) require premium, too! I wonder if BMW started re-thinking their decision not to bring the MINIs (not Cooper) over to the US with the last few months of high gas prices.

Quick update: My 2005 MCS has close to 8000 miles now, so she's pretty well broken-in. My driving is usually at least 80 "suburban" driving. (Stop and go, mostly short trips to work and the store, but sometimes I get on a major street with a 45 mph speed limit and catch all the lights for a few miles.) Average speeds on the OBC are usually 22-25 mph, average mpg, between 21.0 and 23.0. (Unless my wife drives the car - then it's below 20!)

 

P.S. I've been logging all my fill-ups since I bought the car - in 7800 miles, I've only screwed up twice. I forgot once - the car's third fill-up - and a few weeks ago I wrote down the price I paid instead of the gallons. (Unless my tank holds 29.66 gallons! )

My calculated mpg is always within about 0.2 mpg of the OBC. I see people reporting that their cars are off by as much as 4 mpg. Did BMW improve the programming on later cars, or do I just drive more like whatever the computer is using as a model?

 

Last tank was 35.7 mpg/avg.

HOORAY!

 

From your avatar (and the number!) I assume you're talking about a Cooper?

 

You got it! And i have a light foot, almost all highway driving :P

 

I only get that when I'm coasting.

 

My OBC says 25.3, my calculated mpg over the short time I've had the car is 24.87. Thats in 2697 miles per my previous post. Now, to add to your question above, I can't find anywhere whether the OBC resets with each tank, or is displaying the average since I owned the car. I do know that it has always stayed in the 24 to 26 range.

Anyone know?

 

^^ You can reset your OBC MPG average by accessing it via the little button on the turn signal stalk and then holding the button down to clear the average. If you've never done this, then it has been calculating the averages since you got the car.

 

OK - never done that so that's my mpg overall via computer. Pretty close to actual, within .5 so good enough!

Thanks OmToast!

 

Filled up a minute ago,
26mpg on the last tank, all hi-rev city driving.

 

Even though I get great MPG cruising on the highway,I can knock that down quick,and alot, with some spirited backroad motoring.

 

Ack! NO! you really shouldn't be using 5th until over 50MPH. These cars don't have much torque and running revs much below say ~2200 is actually causing more wear on your pistons than running 3500-4500 in 3rd or 2nd.

Maintain 3000 RPM in any gear (city) and your COOPER will be very happy and live a long life.

 

Reseting OBC between tanks (which doesn't fully reset the computers built-in long-term EconAVG2 used for Range calculations) and driving consistantly will yield fairly accurate OBC numbers.

What's sad is its so easy to make those numbers fall, but so hard to get them to go up.

 

I agree you need to keep the rpms up to have power available without the need to shift........but how does piston wear increase at a lower rpm? Wouldn't piston wear be determined by how many time the piston moves up and down? Other than starting the engine it would seem this would be the primary wear factor.

 

95% city driving, correction, 95% aggressive city driving/ 5% highway....got 15-17 MPG prior to ECU mod, now 17-20 MPG.

 

Mine's great. Recent 1000+ mile trip on interstates and mountain roads yielded an indicated 32.6 mpg. City driving will kill your mpg.

 

I agree with you; as long as heavy throttle does not cause lugging, there is lower wear (both piston and valve gear) with lower RPM, and also a bit better gas mileage. Low RPM with light throttle is very easy on the MINI engine and most other modern engines. Shift down only when you need or want more immediate power.