T Tommy 00GT Founding Member Feb 13, 2000 122 0 0 Bay Area, CA Oct 28, 2005 #1 Oct 28, 2005 #1 but when I went from stock platinums to autolite 764 copppers I did not notice a change in performance, however a decrease in gas mileage. Now I went back to platinums and my gas mileage is back.
but when I went from stock platinums to autolite 764 copppers I did not notice a change in performance, however a decrease in gas mileage. Now I went back to platinums and my gas mileage is back.
