5.3L Flex Fuel Ethanol engine

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02-13-2006, 05:13 PM

#11

zippy

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it does cost more, but keep in mind that it's 105 octane.

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02-13-2006, 05:30 PM

#12

Nikon02

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Ok great but if you do not have a reason for the higher octane what is the point? The average driver dosent use any forced induction or a compression level high enough it would be needed.

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02-13-2006, 06:32 PM

#13

zippy

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run more timing to take advantage of it. when the truck is in flex fuel mode it puts down over 300 stock.

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02-13-2006, 06:35 PM

#14

Nikon02

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If you mod great it will work perfect but for stock, i personally do not think it is that great of an idea.

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