darkdan, If you are addressing this to me, then yes, lately I've been putting the little v6 to good use. From high speed trips to towing 2 to 3k lbs at highway speeds. The havoline 5w20 has held up well, but with summer and the 100+ temperatures was looking for an added measure of protection and a 5 to 6k oci at a reasonable price. Obviously the m1 is a no brainer, but 6.5 qts a 5+ dollars...well, you can do the math. A reasonable solution seems to point at the diesel oils. They seem to work well in the semi-desert heat.