Re: 4.7L mileage and octane

From: Bill Pitz (dakota@billpitz.com)
Date: Sun Jun 20 2004 - 02:46:22 EDT


On Sat, 19 Jun 2004 17:30:54 -0400, 03dakotacc4.7_4x4@comcast.net
(droo) wrote:
>> I have a 2000 club cab 2X4, and my friend has a 2003 quad cab 4X4, both
>> with
>> 4.7L engines and automatics. He swears (and I believe him) that premium
>> gasoline gives him at least 2 more mpg than regular. When I try premium
>> in
>> my 2000, I see no difference at all in gas mileage. We have both tried
>> this
>> over multiple tanks. His gets ~13 on regular, 15 on premium. I get 15.7
>> on
>> everything.
>>
>> It seems to me that His has a knock sensor or something adjusting his
>> timing, and providing better mileage (and power) with premium gas. Mine
>> doesn't seem to change. Is there a difference in the engine electronics
>> between these two years? Can I update mine somehow?
>> Ned Buckmaster
>
>Are you looking to save money or something? Cuz running premium just to
>gain 2 mpg isn't gonna save you anything.

Plus, according to the original message, he's getting better mileage
on regular than his friend is getting on regular or premium.

I'm averaging about 16mpg on my current tank, which is high for me, so
I'm pretty happy. And that's just plain old 87 octane from the
warehouse club..

-Bill



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