 Every trucker on the road has heard product claims about an additive that simply didn't match their experience. Proof is found from third-party testing by a recognized, credible source. That's proof. Hotshot's secret Stiction Eliminator will improve your performance in fuel economy. For proof, we engaged the Ohio State University Center of Automotive Research to conduct an EPA-certified fuel economy test with Stiction Eliminator on a FedEx truck.