Thanks for the replies guys. I have a case of 10w-30 and a case of 15w-40 Schaeffers blend sitting around and am thinking about the 15w-40 for use in my 4 liter Ford Ranger with 100,00 miles. What is thought about that. That should open the HDEO can of worms, but this I suppose is specific to SChaeffer's oil.
thanks
GregH
thanks
GregH