I grooved a 2000 Chevrolet 2500 pickup 2 weeks ago and just got a good report on it.
Van Mohr the owner said with a big smile that it went from 350 miles per tank to over 400
miles per tank!!!! He is very pleased. This is a mileage gain that was done driving 80 to 85 miles per hour on the interstate. WOW love that groove.
Aron Cheek GadgetmanNebraska