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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, May-15-2008, 04:52:59 PM   #1
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Exclamation Premium Gas Is Over $4.00 A Gallon...Do You Agree With This?

Hello All!

So I've been putting Premium into my M ever since I've had it. This is suggested by BMW. How much of using premium is really needed? Is this just a ploy? A pyshological aspect that using Premium Chevron drives the car better than Regular from 7-Eleven? I saw this article on CNN and this report states that we are paying more for nothing better. What are your thoughts on this? Thanks for all your inputs!


Use premium fuel - With prices already over $4.00 a gallon, premium gasoline is a hard sell these days. But a lot of drivers think because their owners' manual recommends premium, they'll get better fuel economy if they stick with it. Really, they're paying more money for nothing.

Even cars for which premium is recommended won't suffer with regular fuel. Modern engine technology comes to the rescue again. When sensors detect regular instead of premium fuel, the system automatically adjusts spark plug timing. The result is a slight reduction in peak horsepower - really, you'll never notice - but no reduction in fuel economy.


http://money.cnn.com/2008/05/12/auto...ion=2008051315
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Old Thu, May-15-2008, 04:57:38 PM   #2
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I would personally rather spend the extra $3 a fill up then worry about any type of detonation.

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Old Thu, May-15-2008, 05:11:31 PM   #3
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S54 high compression engine = 91 octane or higher that's only gas mine going to get.
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Old Thu, May-15-2008, 05:13:40 PM   #4
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High compression, high RPM, and high specific output.

I'll be sticking with 93 octane. Why even risk the potential for damaging the engine to save a few bucks a week??
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Old Thu, May-15-2008, 05:17:05 PM   #5
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I don't put anything in my car lower than 92. What's an extra .20 for high grade gas anyway? Figure .20 x 16.6 (gal.) = $3.32 over whatever you would pay for regular.

If someone is that worried or cheap perhaps you're driving the wrong car.
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Old Thu, May-15-2008, 05:18:31 PM   #6
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Quote:
Originally Posted by jph28 View Post
High compression, high RPM, and high specific output.

I'll be sticking with 93 octane. Why even risk the potential for damaging the engine to save a few bucks a week??
+1...I started car pooling twice a week to cut down on some gas use....works OK for me...
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Old Thu, May-15-2008, 05:26:07 PM   #7
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I also saw an article on CNN that shows you how to by-pass the issue altogether. A mod that enables you to gain sometimes up to 50% fuel economy using regular octane! AND it costs less than going SC. Check it out:!

http://money.cnn.com/galleries/2008/...ficient/6.html
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Old Thu, May-15-2008, 05:30:25 PM   #8
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Yes our cars have knock sensors which will allow the engine to run on lower grade fuel.

But its only $3 difference... not to mention the fact that its still the same delta from when gas was $2 a gallon. premium was $2.30 then. now regular is $4 and premium is $4.30. So its the same... just regular fuel is way more expensive now.

I would NOT run on 87, the additives in fuel help keep injectors unclogged, and help reduce carbon buildup on valves, while also reducing knock.

For ~$3... its not worth it.
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Old Thu, May-15-2008, 05:33:53 PM   #9
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Yeah I agree with everyone above, my M gets 91-93 minimum. My other 2 SUV's are going with 87 even though they ask for Premium.
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Old Thu, May-15-2008, 05:34:10 PM   #10
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Artie Lange says:

"wahhhhhhhhhhhhhhhhh I own a high performance BMW M3 and I don't want to pay the extra 10-20 cents a gallon,wahhhhhhhhhhhhhhhhh..."

jeezus.

Extra few bucks a fill up? Please people... please
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Discussing Premium Gas Is Over $4.00 A Gallon...Do You Agree With This? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)