I own a 2004 Crown Vic & have had a hesitation since purchase of vehicle. Even using the regular lucas treatment didn't quite cure it but did make a difference.  Recently, you had developed a fuel stabilizer for ethenol fuel so I decided to try it due to it being for ethenol fuel. Within 2 days, the flat spot which I had had smoothed out, idle fo engine smoothed out and performance & gas milage improved greatly.  I know why i stick to lucas products and recommend them to mny friends and family to use.  Thnjks for the good work guys. 

Thanks, just thrilled!
David T Bates Sr.