Yeah, he was kinda in a hurry and being young, just didn't look/read everything the way he's supposed to. Grampa gave Grandson a bunch of leftover oils from the garage that Gramp isn't going to use anymore. Some oils were from Gramp's motorcycles and other oils were just some stragglers from the cars and OPE.
And knowing that any oil is better than no oil or dirty/cruddy oil that, using these heavy wgts oil(40 & 15W50) with the upcoming Summer, wouldn't hurt anything in Grandson's engine. Not realizing that there was a P/S fluid mixed in the bunch.
I mean, other than Gramp asking me and me asking you folks, Gramp searched this issue on the web and most comments came up..."Don't worry about it if it's Only 1 qt of P/S fluid!"
But, I am asking this team anyway 'cause I value the opinions here at Bob's.