Guys,
I found my free copy of Shell's "Aeroshell Presents: Aviation Oil: What
Every Pilot Needs to Know".  with an introduction featuring Bob Hoover.  Oh,
boy.
I guess it's time to watch it again.  It was on the counter at the Lancaster
petro dealer where I bought a case of
50 non a few weeks ago for break in of our TSIO 550.
I'll bet Shell will send you a copy gratis.
Walter Dodson  IV-P 95% and gaining...
ps:  Here is an 800 #...   1.800.231.6950,  found on the video case