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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > which octane fuel for the 325i?



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      05-09-2012, 03:28 AM   #1
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which octane fuel for the 325i?

Hi guys,
I have just bought a 325i e90 2009 model, its the 2.5ltr one, which octane fuel do i need to put? over here we get 91 or 97 octane, which is recommended?

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      05-09-2012, 06:06 AM   #2
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I don't know where 'over here' is as I'm on the app not website. Use the 97. Your car will produce less power on 91.
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      05-13-2012, 06:19 PM   #3
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Quote:
Originally Posted by The_Bear_Yid View Post
I don't know where 'over here' is as I'm on the app not website. Use the 97. Your car will produce less power on 91.
i am from India, over here we get 91/97 octane fuel, which one will be better for the 325i, the 2.5ltr version..

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      05-13-2012, 07:11 PM   #4
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97!
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      05-16-2012, 05:18 PM   #5
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thanks for the info guys..
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      05-23-2012, 05:34 PM   #6
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just found this link, where the review person speced 91 ron for the 325i, check here-
http://www.caradvice.com.au/23283/20...iew-road-test/

whats are your thoughts guys?

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      05-23-2012, 06:23 PM   #7
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What that they list the fuel as 91RON?

My last reply about this seeing as you don't believe what is being said lol.

From the manual!:

It can run on different grades of fuel

98 RON - fill up fuel of this grade so nominal performance values are achieved.

You can also run the engine on 95 RON.

The minimum possible grade is 91 RON.
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      05-23-2012, 07:08 PM   #8
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You might notice a performance drop on RON91, but if the manufacturer says its okay then use it.
The computer will adapt slightly to save damage to the engine, it is no problem.
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      05-24-2012, 04:15 AM   #9
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As above the minimum you can use is 91. We saw improvements between 95 (the UK minimum) and 98 in the 130i (essentially the same engine). Apart from slightly more power though the economy was better so the higher octane fuel paid for itself.

Remembering that fuel will deteriorate and gradually lose its octane in the tank, unless you do a lot of miles, the fuel will quickly drop below the 91 minimum if you start off with 91 octane fuel, so I would avoid it.
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      05-24-2012, 05:33 AM   #10
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Is Tesco 'Momentum' 97ron?
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      05-24-2012, 07:14 AM   #11
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Is Tesco 'Momentum' 97ron?
Not sure you can get that in India
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      05-24-2012, 10:26 AM   #12
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Red face

Quote:
Originally Posted by Falmouthboy View Post
Not sure you can get that in India
oop's...
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      05-24-2012, 04:21 PM   #13
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Quote:
Originally Posted by The_Bear_Yid View Post
What that they list the fuel as 91RON?

My last reply about this seeing as you don't believe what is being said lol.

From the manual!:

It can run on different grades of fuel

98 RON - fill up fuel of this grade so nominal performance values are achieved.

You can also run the engine on 95 RON.

The minimum possible grade is 91 RON.
hmmmn, is that from the manual for the 325i with the 2.5ltr 250nm torq engine?


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      05-24-2012, 07:25 PM   #14
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No, I farted on a wall and that's what was written in the splatter.

Just stick 91 in it, it's the best fuel.

There you go, thats what you wanted to hear.
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