Now I know that the SuperTech oil filters are of good quality, and I use them faithfully, but I do have a negative experience to share with this board regarding SuperTech 5w30. I tried this oil in my 99 Ford Ranger 3.0L V6(which I have since traded) about a year ago. When I was goig up a hill, the lifters satrted tapping loudly, and when I was back on a flat road it quieted down. The speed was about 40mph. I had never had this problem with the Havoline I was running. So to me it seems like the ST oil does not flow right under a load and causes the lifters to loose lubrication and "float". Any other diagnosis's out there?
Cheers!
SoftPoint
Cheers!
SoftPoint