Thanks to all who replied - it was a big help. I have decided to go with Blumethal's, their price was just a bit lower, they also sell the Syntorq for about $10/qt. - I won't use anything else. They also dyno test each unit which impressed me. Their sales staff was very knowledgeable and helpful especially in figuring out the best freight cost. I should have the truck back in operation in a few days.
Dave