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> Fuel system additives, Good or bad?
post Aug 8, 2011 - 6:31 PM
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senick

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So I've heard some negative things about fuel additives for cleaning the fuel system, and I'd like some conversation on the subject. I've been using Gumout fuel system cleaner about every oil change thinking that it was an altogether innocuous compound. But I've read comments on here how similar products can damage the emissions components. I've recently had to change my 02 sensor, and I'm thinking that might be related to my use of gumout.
Are there any good products will no negative side effects? Is there even reason in the first place to use these?
 
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post Aug 10, 2011 - 10:59 AM
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senick

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What about Zmax? Is that just over-hyped lemonade? It's like $20 per application which is 2 or 3 times as much as most of its alternatives. I could see it as just a scam, but I just can't image Shelby lying to me wink.gif

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