ZMax? Does it really work?
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i've tried it in my civic...sure it improved gas mileage...
but i've also read a report in which zmax was involved in multiple lawsuits for fraudulent claims, damage, etc...
i'd avoid it, most definitely.
but i've also read a report in which zmax was involved in multiple lawsuits for fraudulent claims, damage, etc...
i'd avoid it, most definitely.






