 2006 P500 Freightliner with 247,000 miles. The test showed a 3.6% increase in highway driving fuel economy from Stiction Eliminator, an oil additive. The complete report from OSU is available for download at hotshotsecret.com. That's proof. Hotshot Secrets Stiction Eliminator. Available at truck stops, tractor supply, O'Reilly's Auto Parts, and online at hotshotsecret.com. Hotshot Secrets. Powered by science.