Bought some property and a shop.

ARCO Graphite? I am only 33 years old, fill me in the with the details.
Graphite based lubricant sorta gray/black looking. Turned into a bunch of deposits in the engine. Leaked out of everywhere, pretty much a total fail. I once put it in a '73 350 Impala...rpm's went up 300 but I wasn't impressed.