A Different type of oil question

Your clue - which may have been missed or misunderstood - 
>>he put all the same weights together in sealed containers<<
In other words he didn't mix viscosity but kept the same weights together, simply repackaged them.

Oil does not go bad. 

And - look at it this way, if it was good enough for these cars when it was new and the cars were new, why would it not be good enough today?
i'd stick with a reasonable oil change interval such as suggested in the owner manuals with these old cars.

But it's like saying "can't use oil from 1970 in a 1969 car because new oil is better"
That means it wasn't good enough back then because they were working on better oils in the future?
I'd use it - send it my way. 

there are always lesser uses for nice clean new oil, if you didn't want to put it in your car,

there's always the lawnmower, snow blower, use as chainsaw blade oil, etc,

some of the older stuff is even good as gear oil replacements in the right application.

Then there's engine assembly lube, oil bath air cleaners, I like non-detergent for air comoressors, but there's 1000 uses for nice clean new oil, even if you don't trust exactly where it came from.

Now, if it's labeled as to what it is,

and not too much of a witches brew of different types/brands & base stocks (even if the weights are all the same),

theb yes I would run it in any specification correct application.

= might not a good idea to run really old spec oil in something with a cataylist,

but if you have old vehicles kicking around like I do,

they need oil changes too 

Second car - Javelin - sold to my brother with about 90,000 miles - he then sold it to another fellow when it had 120,000 miles on it.
AMX - traded in for an Eagle when it had just shy of 90,000 miles. It went to Denver, drove around the Rockies a bit, was a daily driver commuting to work car for years.

Chevy pickup with 350 - traded with 100,000 miles on it, all original. It was a FARM truck, hauled anhydrous tanks into the field, hauled a big flatbed trailer with antique engines and antique engines to shows around the state. Was used hard.
I could go on - but to suggest that the oil could do damage boggles the mind - it's just not logical. 

People are suggesting that the oil I grew up with and which got my engines into high-miles, some crazy high miles, is not worth using?
Granted, today's oil is better in a lot of ways - but that doesn't mean yesterday's oil will damage your engine. 

How will it damage an engine? I'd love an explanation since I proved it didn't damage any of mine. 

Every car I listed above was sold or traded with an UNTOUCHED engine - none of them had ever had so much as a valve job, let alone any oiling or ring issues. None used or burned oil outside of the norm for that time period. Oil changes were done at regular 2,000 mile intervals. 
So you all are suggesting if i get that oil and use it in any of my three AMCs, I will risk destroying them?
And yet I drove all those cars all of those miles with no engine problems ever?

Save $10? Have you priced oil, even at Walmart, lately?

Sorry, send that oil to me and I WILL use it. In cars.
Unless it's been left in open containers where dust and dirt and moisture could get in........... 

BTW - today's modern lawn mowers spec some pretty good oil these days.......  Those Kawasaki engines have some tight tolerances and run some pretty good RPM and loads.