Was 5.3 mpg now 6.5 mpg

Just received from our customer in Chicago area.
May 1, 2008
Subject: FFT Product
Frank,
We at 38 Freight LLC have been using your product for nearly 5,000 miles and wanted to let you know that it REALLY WORKS. We averaged 5.3 miles per gallon with our 2005 Peterbilt 387 Tractor before using FFT but now we [...]

Jetta TDI reports 60 mpg

Just got a call from SS in Waldoboro, Maine. SS picked up a pint of FFT Fuel-Saver at the Green Expo 2 weeks ago. He has driven diesels and worked with diesel engines for years. SS poured in 1 ounce of Fuel-Saver with some trepidation.
He drove his TDI (a 2001 model with 240,000 miles) [...]