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BMW 3-Series (E90 E92) Forum
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87 octane
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11-04-2012, 04:36 PM | #23 |
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Would one tank of 87 really screw anything up?
I still have more than half a tank of 93 and have been nursing it but might have to go 87 sooner or later. By the way coming from a south shore town who was hit hard by Sandy my thoughts and prayers go out to everyone affected by this also. |
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11-04-2012, 05:02 PM | #24 |
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11-04-2012, 05:02 PM | #25 |
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We had some of what you're suffering through up there here in Texas back in 2005 when Katrina and then Rita hit our Gulf Coast area. We sympathize with your situation, believe me. I hope all our fellow posters on here who are in the affected areas are able to recover soon. Good luck to all of you.
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11-04-2012, 05:17 PM | #26 | |
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11-04-2012, 05:49 PM | #28 |
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11-04-2012, 06:05 PM | #30 |
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First off understand I said its the administrative staff that is mishandling the issue. Secondly when a company takes money from hurricane Irene to upgrade their infrastructure and doesn't nothing the people who pay their bill has a right to say something. Thirdly if u lived in an area where it is cold and no heat or electricity for a week I'm pretty sure u would lose your patience too. So before u blurt out what's on your mind think about all the problems and crime that is happening in the effected area. And I'm done bc it's becoming a political post.
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11-04-2012, 06:14 PM | #31 |
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11-04-2012, 07:21 PM | #33 | |
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11-05-2012, 01:23 PM | #34 |
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11-05-2012, 02:04 PM | #35 |
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11-05-2012, 02:22 PM | #36 |
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11-05-2012, 03:07 PM | #37 | |
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There is literally no worse case scenario than your substation being flooded with salt water. As for the gas, it won't matter. For one, the NA engines are, as has been mentioned, minimum 87 as per the manual. The manual even states that the level of pinging while running the engine hard on 87, while higher, will do nothing in the way of reducing engine life. Half your average lease returns will have been run on 87 for the duration of the lease anyway. Turbo engines are definitively more octane-sensitive, but a tank of 87 wouldn't kill it, by any stretch. And we're not talking about turbo engines, here. |
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11-05-2012, 03:58 PM | #38 |
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Had no choice to fill up mine as well with 87 octane today and so far is alright.
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11-05-2012, 04:26 PM | #39 |
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87 is no danger even to the N54/55 since they are direct injection engines. No risk of detonation. 87 is Ok on turbo DI Hyundai and Ford.
However, there is no reason not to follow BMW specs and they don't want 87 on N54/55. |
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11-05-2012, 04:37 PM | #40 | |
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It's like the AA tune people love to get for their BMWs. You can reengineer the engine to get a little more performance at the expense of freedom of gas choice. But from the factory, even midrange BMW engines are designed to run on anything available in the US, given the assumption that customers will feed them 87 sometimes even if it's not optimal. |
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11-05-2012, 04:56 PM | #41 |
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11-05-2012, 05:08 PM | #42 | |
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my buddy works in airport security business, every time he is "helping" YOU fly safe thousand miles from home, he is actually having a blast with almost unlimited company credit card and near luxury hotels. |
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11-05-2012, 05:12 PM | #43 |
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11-05-2012, 08:56 PM | #44 |
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87 octane.
I have always used to run my car on 91oct. Until a year ago.
I started to take my car to an small indy shop that run by a Bmw veteran ( 35 yrs in service ). While he was changing the engine oil I asked him about the octane rating and possible impact of using lower rated ( 87oct ) fuel. He said, there is no harm of using lower oct fuel especially on the Hwy. but he recommended mid to high in the city. Either way there is no harm to the engine. With lower octane there will be small ticking noise coming out of the engine ( not lifter ticking ). Since I drive mostly hwy I have switched to lower oct fuel. No issues at all. I can not speak for turbo engines regarding that. But my experience with lower octane fuel on N52 has been good. In a situation like Sandy, i could careless what bmw says as long as the car is running. At the end its is just A car. Hope everybody makes it out ok from Sandy.
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