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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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#21 of 43 07 Cooper S 6mT by blueguydotcom Jan 21, 2008 (1:27 pm)
I consistently get 30 mpg with mixed driving (including bumper-to-bumper) and lots of WOT. I've seen 28 with lots of AC and seen over 33 on longer drives.
#22 of 43 Mini S, High octane vs regular gas by morgan5 May 13, 2008 (6:41 am)
I have a 2006 Cooper S and given where gas prices are going, I want to know if anyone out there has tried burning regular gas in their Cooper S. If so, what were the results? I've been told, that the car's computer makes adjustments for the octane being used, but that information did not come from a Mini mechanic. Replies to this message: waterflame (May 13, 2008 11:42 am) morgan5 (May 14, 2008 5:28 am) ltq (Oct 20, 2008 6:53 am)
#23 of 43 Re: Mini S, High octane vs regular gas [morgan5] by waterflame May 13, 2008 (11:42 am)
Replying to: morgan5 (May 13, 2008 6:41 am) Actually, the Mini salesperson told me this as well.I'm not sure what the mechanism is, but I think the onboard computer gauges the octane content of the fuel and makes adjustments accordingly.Not sure how it would affect acceleration or efficiency.   On a side note, the difference between premium and regular is usually about 20 cents, which means that you're spending about $2-3 every time you fuel-up. Unless there is a significant difference to be gained in mpg by using regular instead of premium fuel, I don't see much of a saving over a year. Replies to this message: morgan5 (May 14, 2008 5:28 am)
#24 of 43 Re: Mini S, High octane vs regular gas [waterflame] by morgan5 May 14, 2008 (5:28 am)
Replying to: waterflame (May 13, 2008 11:42 am) Around here (Virginia Beach), the difference between regular and premium is more like 25 to 30 cents, but I agree with your assessment waterflame. Thanks for the reply.
#25 of 43 Re: Mini Cooper Gasoline? [vandelay] by freelejo May 15, 2008 (10:00 am)
Replying to: vandelay (Sep 17, 2006 11:26 am) For my non-turbo mini I have been fueling with 89 octane since 91 is not avaiable at all pumps in my area. For grinns I called the dealer service center yesterday to get their opinion. Before the mini I had an 01 Passant and it stated I had to run premium 91 Octane, but the service center said 91 Octane is he Euro rating and 89 Octane is the equivalent here in the states. However, the Mini service center said for the mini 91 is a minimum, but you can also burn whatever you want. What might happen is you might get a check engine light, and in the long run the regular gas will not do well for the valves. Since regular gas for mini doesn't burn as efficient as premium you will see a carbon build up on the valves which means down the road you may suffer with worse performance than just the loss of MPGs.
#26 of 43 Real World MPG by coupah Jun 05, 2008 (2:09 pm)
The onboard computer on my '05 BASE convertible, 5-peed manual, calculated 35.3 MPG. I did not reset it for six months. I ran premium fuel per mfg recommendations.   My '06 S, with a 6-speed yields just 25.2 MPG. I drive it hard and sporty, if you will. I use, per MINI (and BMW and Honda (maybe toyota)) Shell. They also recommend Cheveron and I think Phillips66/Conoco as THE fuel that meet their specifications but only SHELL is available in my area (Boston).   The above mentioned companies collaborated and recommend those fuels for their engines. Much has been written about engine performance and durability relative to fuel and fuel additives. It goes way beyond performance loss/gain. Most important is cleanliness of the fuel system and specifically the injection system.  I plan on keeping my MINI for a longtime and want to see how long it will last!
#27 of 43 I got 44.9 MPG on recent trip! by minidrivermn Jun 05, 2008 (2:32 pm)
My top mileage for my Mini '07 (the lower priced model, automatic transmission) was on a recent 250 mile road trip. The peak MPG was 44.9 for about 150 miles of driving in the 40-55 MPH range on a highway with zero braking. For the entire 250 mile trip, with some 65-75 speeds, averaged 42 MPG.   The cool part is for the entire trip I drove behind a Prius. The Prius got 47.5 MPG when I got 44.9 (I tried so hard to get it to 45 but I had to pass a car right at 44.9, and speeding up cost me that final tick) and for the entire trip, the Pruis did only 3-4 MPG better than the Mini. Pretty impressive. I drove it very carefully without A/C and almost no braking the entire trip. Just two passes at higher speeds.   Otherwise, in mostly city driving, I'm getting in the 27-30 range in winter and summer with A/C running. With heavier highway driving, I'll tick up to 31-35 for the whole tank. The 40-plus is certainly the exception, but for a long road trip, absolutely possible. The key, though, is keeping the speed lower than you'd typically want, so it's a tradeoff going 60 instead of 70 in a 70 zone. I typically wouldn't be so worried about losing a few MPG ticks to get somewhere faster, but I wasn't in a hurry on this trip and wanted to test the absolute limits of the MPG in perfect flat 60 degree no rain no braking driving conditions.
#28 of 43 fule econamy on a long trip by coyoteblue Jun 12, 2008 (6:28 pm)
Last summer we drove our 2006 Mini Cooper from a small town south of Houston TX to Phoenix Arizona and back with an overall average of 41.5 mpg. We also mostly drove at 60 miles an hour just to see what optimum fuel efficiency could be. Generally we get 36 - 37 mpg per tank commuting 20 miles to work. This summer we get to try with our mini clubman s which won't want to travel at 60 mph. Am looking for a 40mpg club bumper sticker.
#29 of 43 Milage around town by morgan5 Jun 13, 2008 (4:43 am)
Everyone talks about highway miles when discussing MPG, but I'm more interested in around town driving. My daily commute in my 2006 S is about 15 miles in stop and go traffic (no interstate or highway). Usually, I get about 22 to 23 MPG around town. Now that the temperature is getting hot I am running the AC most of the time and my MPG has dropped to 18-19. Is this normal? Replies to this message: minidrivermn (Jun 13, 2008 7:29 am) morgan5 (Jun 13, 2008 10:11 am) minidrivermn (Jun 13, 2008 10:36 am) british_rover (Jun 13, 2008 10:17 am) morgan5 (Jun 13, 2008 10:33 am)
#30 of 43 Re: Milage around town [morgan5] by minidrivermn Jun 13, 2008 (7:29 am)
Replying to: morgan5 (Jun 13, 2008 4:43 am) I've gotten 28 MPG under the worst of conditions - super-short stop and go trips with A/C on and somewhat fast acceleration. I'd say that's the bottom in the "entry-level" automatic transition model. It probably gets better as the car gets more broken in. That is using high octane gas. You don't want to use lower octane or it'll drive poorly at slow speeds, such as in parking lots, where you'll think there's something wrong with the car as it seems to search for the oomph to get going. Replies to this message: morgan5 (Jun 13, 2008 10:11 am) minidrivermn (Jun 13, 2008 10:36 am)

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