Can you get better fuel economy with a fuel additive? That is the question in this episode of ChrisFix where he makes YouTube History by testing a fuel additive to see if it will actually give you better fuel economy. Chris sent out 20 bottles of the fuel additive to 20 lucky subscribers to test their fuel economy and they drove a total of 56,000 miles to test the fuel additive and the results are in! To find out the results of this historic test click the video below!
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