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7 Series - F01 / F02 (2009 - current)
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Old 12-06-2012, 03:14 PM
SFbay SFbay is offline
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Location: SF
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Mein Auto: BMW 745i
I'm 99.9% sure the owner of this thread drives 2011 750i only on this forum
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Old 12-06-2012, 05:59 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 22,701
Mein Auto: 02 BMW 525i M54 auto 130K
Originally Posted by azbimmer View Post
I am not sure what your point is.
I only had two points, the first of which was humor (notice the smiley), and the second of which was simply to bolster those who said it wasn't important at all to put premium gasoline in his vehicle.

Of course, I pointed the OP to the threads which actually discussed the pros and cons of using premium versus the better burning fuels at the lower octane rating, and even to the Gasoline FAQ which explains exactly what an anti-knock index indicates (hint: it has nothing to do with power, per se, nor of fuel economy, per se).

The OP asked for an opinion on how important premium is - and we all gave him an opinion. To me, gas is gas - but I 'do' fully and completely understand what an octane rating indicates (see the detail in the threads referenced) so I also fully understand those who say to put premium in the car.

Of course, if it knocks on the better gas (i.e., the lower octane fuel), then sure as Christmas, the OP needs to reconsider any of the advice provided ... yet ... if it doesn't knock on the better (i.e., lower octane) fuel, then all the advice given (both pro and con) should be taken into account.

Good luck to all!
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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Old 12-07-2012, 09:06 AM
jdefg2000 jdefg2000 is offline
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Location: San Diego
Join Date: Nov 2011
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Mein Auto: ActiveHybrid 7 LI
Originally Posted by f01driver View Post
I've never put cheap gas in my car, it's always Chevron and premium which doesn't contain ethanol.

And the car show "Fifth Gear" did a octane test and they found that higher octane does give you better mileage and performance but not all premium gas is the same which was interesting.
Agreed.....I even tested multiple premium gas, and swear that i could tell a difference with Chevron premium over the other brands....this was with my porsche twin turbo....to this day Chevron is always my first choice too.....
2012 AH 750Li/Jet Black/Black/Leather Instrument Panel/Ash Grain/Ceramic Controls/Rear Seat Ent/Sirius
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Old 12-07-2012, 10:13 PM
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Expo BMW Expo BMW is offline
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Location: City of L.A.
Join Date: May 2008
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Mein Auto: E65,P71 Police Intercept.
+3 For this reason I always try to fill up at Chevron although I dont think we can get any ethanol free gas in California.

OP might not damage anything during his ownership by using regular but the next owner will likely face the consequence.

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Last edited by Expo BMW; 12-07-2012 at 10:16 PM.
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