I haven't read all of the articles, but it's very interesting reading. Frank, what is your background?"
Background is: machinist mechanic toolmaking, used to help build machines and ships and subs and ran numerous + various power plants. Specialized in full five axis machines with 15+30 foot tables in '78, that is how I know secrets about Pi and pyramids.
My last three years I spent rebuilding test flowing jet engine dual fuel manifolds. Stoddard fluid.
I have followed lubrication since my first car- '55 Chevy I built being poor, and regressed
(such is life) to my '51 Chevy which I put 90W in it to get it thru inspection, could hear the pistons slapping around in there, the bananas in the intake manifold and steel wool rammed up the tailpipe helped I bet.
Note standard 55 chevys the oil filter was optional for a time, yadah yadi, don't get me going.
I just old fart and want everybody to know about lubrication which took me so long time to figure out.
Gee, what oil is in a new Vette or Lexus? Like 0-50W. I astonished. 'Tiss synthetic sewing machine whale oil!
When young the big argument was should put detergent oil into engines that never had any before. =NOT
So far I found that life is short and if one asks an studied engineer a good question then She/He will fill up ones' thoughts with wonderment, often leading to land of crystal clarity.
"Based on all of these articles, what is your oil of preference for old military vehicles with unknown maintenance histories?" Non Sequitur, tell me vehicle exact, engine and normal use first, Then I can state with a studied response. Me thinks I will always be an apprentice, but don't get paid anymore.
I have said since 16, that probably by the time I get it figured out I will then croak. Oh, well.
I said I run on and on and just did it again, but I found that if somebody asks a question then give a proper learned answer. It is like try to glean the information you want from reading/assimilating all available. One can at least get to the correct path of research that way.
View attachment motor oil engine oil july 1986 study a206053.pdfView attachment motor oil GF6_mobile1_pc11_dexos1_05292016.pdfView attachment motor oil TBN diesel engine oil Tech Bulletin TBN-Chevron.pdfView attachment motor oil zddp zdtp apism cj4 03132013.pdf
There is very learned people out here would just love to tell all they know. I just a Worker Bee.
GOTO this link and read it, interesting begin page 54
http://www.engineprofessional.com/EPQ4-2018/mobile/index.html#p=56