A&L Trucking :
"I own 7 rock trucks and I have used the catalyst for 8 months in all the trucks.
I installed the
TR1~FuelSaver in my 2007 Peterbilt November 29, 2008, and it is AMAZING. This truck went from a base line of 4.31 all the way to 5.32 MPG. This is a 21% INCREASE.
Drivers like it because it’s simple and easy to use"..