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#1
03-31-2008, 11:42 PM
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What gas do you use, 91 or 93 octane?
I know that the manual recommends at least 91 octane gas but do you actually use 91 or 93 on your E70 3.0Si ? Is 93 worth it (not looking for performance...) or should stick to 91 octane ?
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#2
04-01-2008, 12:55 AM
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87
__________________
2002 X5 3.0 Siena Red Premium, Cold Weather, Rear Climate Packages, 19" Wheels Aluminum Running Boards, Clear Tail Lights, Clear Side Markers Titanium Kidney Grills, Titanium Trunk Lid, Xenon Headlights 4.6is X5 exhausts, 35% Tint, Aluminum Pedals 2005 530I Mystic Blue Premium Package, Sport Package, Xenon Headlights 18" Sport Wheels, 35% Tint all around Mods to come: M-Tech Front Bumper, M5 Side Skirts, M5 Rear Bumper Quad Exhausts, Style 172 19" Wheels
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#3
04-01-2008, 01:11 AM
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A higher octane than 91 isn't necessary and won't hurt or benefit the X5. If anything, higher octane gas actually releases less energy. However, an octane lower than 91 could result in detonation, which means less power and damage in the long term.
__________________
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#4
04-01-2008, 01:13 AM
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Here in CA, we used to have 92, then a couple of years ago it mysteriously turned to 91. So I use 91, as that's the highest we now have. Although there is/was a station on Channel Road in Santa Monica that sold 100 Octane!!
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#5
04-01-2008, 01:32 AM
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Do some searching. This have been talk about a dozen times.
If BMW recommends 91, then filled it with 91. Anything more is just waste of money. Unless there is only 93 available then 91 is okay. I have use 89 in the past on my E53 3.0 and E70 4.8 with no problem, because 91 or better wasn't available at the gas station. "89 is better than run out of gas" but I usually filled it up 92 or 93 because there isn't 91 available in Michigan. Read more in www.toptiergas.com/ It is not important in term of octane in today modern Car. Unless it is a TURBO CHARGER, total different subject. Otherwise 87,89,91,92,93,94 even 100 will burn the same. It is the Detergent in Gas that really make the differents in the long run. Use what is recommends on the owner manual. If it ask for 91 on E70, then 91 it is. More is not better, just waste of money period! 
Last edited by wb488641; 04-01-2008 at 01:52 AM.
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#7
04-01-2008, 04:54 AM
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Actually 2 dozen.
Check out post #4 http://www.xoutpost.com/lounge/43361-...=dumb+question Quote:
__________________
"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.” Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance……. 
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#8
04-01-2008, 05:58 AM
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Quote:
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#9
04-01-2008, 06:08 AM
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