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MINI Cooper: MPG-Real World Numbers

43 messages,  Last post on Oct 26, 2009 at 1:21 PM

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What is this discussion about? MINI Cooper, Fuel Efficiency (MPG)

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#36 of 43 Re: What gas do I use? [nutomotr08] by busiris Jun 27, 2008 (6:24 pm)
Replying to: nutomotr08 (Jun 26, 2008 10:41 pm) have seen some postings regarding this but I will ask again anyway. I have only had my MINI for about a week. As I was leaving the dealer told me I should use 91 octane. It is not always available, so when I filled up for the 1st time, I asked the gas station attendant if I could use 92 octane. (I figured the higher the better!?) and they said yes, it really wouldn't matter. Since then when idling and at low speeds my MINI is really sputtery. Is this because of the 92 octane? What should I really use, despite what the dealer told me? I have heard different stories.   It is not the octane causing the sputtering. Your Mini will run acceptably well even on 87 Octane gas, although the mileage will not be quite as good. My wife's 2005 Mini runs on 87 octane beautifully. I would guess you are running a poor grade of gas currently.   I would suggest using a different, name brand gas (ie, Shell or Chevron) for a few tankfuls and see how it performs.
#37 of 43 Non-S 5000 mile trip 39.5 mpg by ilovebatz Jul 27, 2008 (1:24 pm)
We took a stock mini (non-S) from Evansville, IN to the Pacific Northwest and back, about 95% hiway driving, 5500 miles, and achieved 39.5 mpg. We used premium fuel at almost every fillup, a couple times we used plus. Best tank was 45.5 mpg, worst was 35.0 mpg. Didn't keep track of which gas had ethanol. Speedwise we averaged between 65-75 mph for most of the trip. We thought about taking the CRV but took Mini instead. We did take out the backseat so we could fit our camping gear. It actually worked out quite well.   I was impressed.   Regards,   Harry Faulkner
#38 of 43 Re: Mini S, High octane vs regular gas [morgan5] by ltq Oct 20, 2008 (6:53 am)
Replying to: morgan5 (May 13, 2008 6:41 am) I have a Clubman S, which shares the manual with the Hatch. It clearly states that premium is highly recommended, but also that 87 gas will NOT hurt the car nor void the warranty. Read the manual!! The knock sensor takes care of the car. As to whether the extra price of 91 gas offsets the poorer (as reported) mpg from using 87 gas, I don't know *yet* . I am getting 33mpg real (measured by gas fills of 91 octane) in mixed driving (31 mph average on a tank) on the turbo Clubman automatic (the worst mpg configuration). But I've got a couple of years of gas-pedal training from driving hybrid cars...... this makes a BIG difference.
#39 of 43 MPG by bufnita Nov 14, 2008 (2:03 pm)
08 Cooper MT...average 38-39 mpg, highway driving 42-45.5 depending on top speed. Have all season 15 inch wheels and when I switched for the summer for 16 inch runflat summer tires mpg dropped about 2 mpg...
#40 of 43 09 cooper S auto by tezzz Jun 07, 2009 (7:51 pm)
80% Hw 20% Local actual 31.8(Miles/Gal(pumped gas) on baord computer 32.4 Avg. 75-85 M/H on a Hw
#41 of 43 speedo calibration wrong.... by gasman2 Oct 09, 2009 (2:27 pm)
I have an '09 classic and the speedo is 10% inaccurate. My actual speed is 10% less than both speedos say. I am from Canada so the readings are in kilometres but the difference is still there. This also means that my odometer is racking up milege 10% in error as well. Contacted dealer and was told there is nothing that can be done. I checked my speed with my GPS unit, knowing that is accurate. Anyone else with this problem? Makes gas mileage figures better than they really are.....
#42 of 43 speedometers extremely inaccurate by gasman2 Oct 10, 2009 (4:54 pm)
My '09 classic has only 5000 kilometers (Canada) and the both the speedo in the tach and the large centre speedo say I am going 10% faster than I really am. I suspected an error so I checked it with my GPS. Contacted dealer and said there was nothing they can do. I explained that my odometer was also racking up kilometers faster than reality. My true mileage on this car is only 4500 kilomters. I believe the factory does this so when we check our mileage it appears to be 10% better than it really is. I am presently in discussion with the company to have the problem fixed. Anyone else having this problem? Replies to this message: rwsyclone (Oct 26, 2009 1:21 pm)
#43 of 43 Re: speedometers extremely inaccurate [gasman2] by rwsyclone Oct 26, 2009 (1:21 pm)
Replying to: gasman2 (Oct 10, 2009 4:54 pm) I have an 08 MINI S and I just came back from my first service. I told the service advisor that my speedo reads 3-4 mph faster, depending on the speed, then I am actually going. I have checked via radar and my GPS. They said there is nothing they can do. I have the stock tires so this is not the problem. In fact they wrote on my service order that all of their cars, MINI's, read fast so as to avoid "traffic speeding." Needless to say I was, and am angry. I have owned many cars and trucks, including BMW, MBZ, Corvettes, and Porsches, and have never had a vehicle more than 1 mph off.

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