I have been using the full vacuum system on my car now for almost 2 years--from what I have now and what I had before--I'm not looking back--my oil useage was right at 1 qt every 1,000 miles before I hooked everything up. Now my oil useage is 1 qt every 3500 to 4000 miles. My gas mileage is right on when on the highway, wish it was a little better in the city--in my case, this has worked wonders and if it helps anyone else, I'm hope for their success. My mileage on the car is now 225,000 miles--this has worked for me
Last edited by poolman; 03-09-2012 at 05:36 PM.