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I have 3 Ford vehicles: a 2001 Taurus, a 2006 Taurus, and a 2008 Explorer. All of them have V6 engines. The check engine light for all 3 comes on at times.

If I use gasoline without ethanol, the CEL usually turns off within the first tank. But, when I switch back to gasoline with 10% ethanol, the CEL eventually comes back on.

Anyone have any ideas or suggestions?

Zach Mierzejewski
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W.ROYCROFT
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1 Answers1

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Keep in mind the ethanol burns so much hotter and your vehicles have years on any seals, sensors, etc that haven’t been replaced. I’d personally avoid the added system stress and just run regular 87. IMO it’s not worth saving a couple/few bucks today when your cars are warning of tomorrow’s repairs that will likely cost hundreds or thousands.

Bill Pawlicki
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