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With rising gas prices, I wonder if any chip tuners have considered creating an 87 octane program

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Old 08-24-2005, 06:17 AM
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Default With rising gas prices, I wonder if any chip tuners have considered creating an 87 octane program

or one that cuts the engine down to 3 cylinders when idling in traffic or any other type of fuel conservation program that could be used when tooling around town.

I ask because I finally gave up and started experimenting with lower octane in my motorcycle. I've always used 91 or above, but I vaguely recall that the owner's manual didn't preclude lower octanes. When gas was cheap, I didn't care, but now that I'm paying over $10 a tank to fill that thing up, I started thinking about reducing the expense slightly now that I'm riding it all the time. Made me start to contemplate ways to improve fuel economy in the S4.
Old 08-24-2005, 06:19 AM
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Default I also have a small boost leak

But yesterday I used valet mode to drive (on highway) but just used lemmiwinks to raise the speed limiter so I could go fast enough Final MPG 30!!!! Just need to be careful on the accelerator.
Old 08-24-2005, 06:20 AM
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Default You drive an S4. If fuel economy is your primary concern, you should be driving a

Honda Civic.

-Dave Pramanik
Old 08-24-2005, 06:27 AM
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True dat.
Old 08-24-2005, 06:31 AM
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If you run an S4 on low octane fuel say goodbye to your engine
Old 08-24-2005, 06:36 AM
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LOL...I asked the same thing in the B6 S4 forum Monday and they laughed at me.
Old 08-24-2005, 06:37 AM
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Take note of your knock voltage and CF on 9x, lemmiwink down timing and/or SEL till it matches on 87
Old 08-24-2005, 06:37 AM
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Default I can't stand seeing responses like this,,,,,,(long)

I don't care what you drive it is not a bad idea to worry about fuel mileage.

I bought an S4 because I wanted something that I could not only use to whoop-on meatheads in trans-ams, but also take across the country snow or shine practically.

,,,,I'm also tired of hearing people ripping on Honda's. I have a 93 Civic HB that isn't even close to stock, not practicle for a daily driver, owns the S4 on the highway, gets 32mpg cruising at 70 and has almost twice as many miles.
Old 08-24-2005, 06:37 AM
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Default Okay, how much money per month are you saving by using lower octane in the motorcycle??

My guess is that incremental savings pales in comparison to the savings of driving the motorcycle instead of the S. Gotta wonder why you're even contemplating it.
Old 08-24-2005, 06:39 AM
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Default repost. its an easy calculation...the delta price between 87 and premium will only save you

around $100 a year. which is NOTHING. do the calculation yourself...its easy. unless you have a commute like markp's...forget it.


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