Is Syntek Global a Scam? This is the #1 question I get asked when people find me on the Internet. Well I am here to let everyone know that Syntek Global is not a scam. In fact, Syntek Global is a legitimate direct sales opportunity. Even though the method that Syntek uses to advertise Xtreme Fuel Treatment (XFT) is by using a MLM business model, the company is not a scam. Please check out the video below as I explain why I personally feel that people may consider Syntek Global a scam.