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Improve Gas Mileage?

2K views 1 reply 2 participants last post by  TA CC TX 
#1 ·
Was just watching Stacy David on Speed peddling some cylinder deactivation product that's supposed to increase fuel economy by up to 22% called Fuel Smart. Anyone ever heard of it? Experiences?
 
#2 ·
they should be ashamed of theirselfs ,,,wonder how much they got to say that ,,,,,Snake oil I am sure.
 
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