Carl Ogden
Tunit Advantage C-24
December 17, 2021

Western Star 620
After I installed my Tunit I went from a base of 7.25 mpg to a consistent 7.75-8 mpg after the Tunit was installed. This translates to over $10,000 a year on fuel savings (based on 0.5mpg improvement @ 130,000 miles a year).