Premium Gasoline - 2015 Mini Cooper Forum
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post #1 of 31 Old 04-20-2015, 10:19 PM Thread Starter
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Premium Gasoline

I'm a newbie waiting for my Cooper to be built. I understand that even the 1.5L needs premium gasoline. I have an MGB with an HC engine that takes premium. On occasion, I've run into stations that I suspect are cheating with regular in the premium pump. Has anyone run into this situation? What happens to a Cooper running on regular gas?

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post #2 of 31 Old 04-20-2015, 10:31 PM
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I always seek out Sunoco for premium fuel....you won't ever have a problem there.

John
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post #3 of 31 Old 04-21-2015, 12:04 AM
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I always seek out Sunoco for premium fuel....you won't ever have a problem there.

John
Yuk - Yuk.

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post #4 of 31 Old 04-21-2015, 10:50 AM
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Yuk - Yuk.
Really? Where can you find Ultra 94 (Octane)?
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post #5 of 31 Old 04-21-2015, 12:46 PM
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Premium gas is recommended, not required.

Me - F56 Cooper automagic Volcanic Orange
Mrs - 2009 Cooper Clubman PW automagic
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Gone but fondly remembered - 2004 Cooper & 2008 Cooper
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post #6 of 31 Old 04-23-2015, 03:58 PM
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Premium gas is recommended, not required.
No, but you don't want standard gas in your tank either. It will knock and eventually cause damage to the engine. Mid-grade (89 octane) is minimum and premium, in my experience, will give you the best performance and mileage.
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post #7 of 31 Old 04-24-2015, 09:18 AM
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What he said. Don't mess with it - feed it premium. The computer will compensate for bad gas to a point to keep it from knocking as much as it can, but in spite of what many will say (and I've read a bunch of people saying, "Ohhh that's hogwash, it'll run fine on silver or just plain old unleaded...") don't mess with it... the engine is not running normally.

And yes, there are some stations that will cheap out on the gas to provide a "discount", but for the most part the regulations and regular inspections keep them pretty honest. I refuse to pay the incredible prices by some of the big boys here (Chevron, Shell, Texaco) and have been doing fine. Of course, I'm also tickled to be getting so much better than my truck and running the calculations, I'm still saving money even buying premium with the mileage I'm getting, so that takes a lot of the premium price sting away.
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Last edited by Tiger; 04-24-2015 at 09:24 AM.
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post #8 of 31 Old 04-24-2015, 09:23 AM
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Guys, this might help, from edmunds.com:

"Edmunds has compiled two lists: "premium recommended" and "premium required" for vehicles from the 2009-2014 model years (with a few 2015 model-year vehicles). If your vehicle is on the "premium recommended" list, you're OK to try switching to regular unleaded gasoline. If, on the other hand, your car is on the "premium required" list, then you have to run premium fuel. You can confirm the information on these lists by checking your owner's manual".

Mini Coopers are on the 'Premium required' list.

Full link to article here:

http://www.edmunds.com/fuel-economy/...g-premium.html
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post #9 of 31 Old 04-24-2015, 10:37 AM
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I have been running 89 Octane on my last Tank all City/Highway Driving before that I run a Tank of 91. Honestly I can not feel the Difference so the Computer must be doing a good Job. No Matter if I use 89 or 91 Octane them other Motorists still drive like Knuckle Heads around me. However I will stick with 91.


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post #10 of 31 Old 04-24-2015, 10:41 AM
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I'm glad our nearby value supermarket sells 95 oct reg and 99 oct premium. Good old Blighty.


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