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Fuel treatment before or after filter replacement?

  

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Scotty, i've seen several of your videos regarding the ATS Chemicals Fuel Cleaner. I have an '07 Explorer 4.0 6cyl auto 4x4 with 179,000 miles. I am about to use ATS Chemicals Fuel Cleaner (as per your recommendation) but wanted to know if I should replace the fuel filter before or after I perform the fuel treatment? Thank You!

Monte in South West Florida


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I would do it after, in case changing the filter loosens up any junk


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