Reviewed By James H (Valley View, TX) Reviewed for a 2001 Dodge Ram —1/10/2013 10:30 PM
Got this for the timing adjustment (level 1) and noticed 1mpg better in the first takn! Waiting to see what it will do when I actually try for high mileage. Level 2 don't notice much difference. Level 3, whether smokin out that neighbor you can't stand or haulin a**, its a day and night difference!