HORTH-THIT. ( You can’t believe everything you read when “A-I” pops an answer on Giggle.)
Amsoil was never around Germany in WW2. It was first developed in the late 1870s in Germany and was widely produced during WW1/2 by Fischer and Tropsch.
The early (1960s) turbine oils used in Bristol, Rolls Royce, GE, Westinghouse, etc were ASTO 500 (Shell) and Schaeffer and Mobil. How do I know? I’m that old and flew those contraptions…and personally poured many hundreds of gallons of that stuff in those early “total-loss” lube-systems.
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