Fred, as guys have been posting, there's no great collector's value in the Shell cans you've shown here. You can keep posting cans like these if you want to, but if they are the same vintage you've been showing us, the answers you receive aren't going to be any different.
If you want to, keep one of each inherited can for the "memories". But, remember, these composite cans will leak over time....if they haven't begun to already.
Then, post a group of the cans for sale on Old Gas for five bucks each, plus shipping.....because there might be some guys here who would like to fill a Shell oil rack up with matching cans.
AND THEN, post what doesn't sell here (will be quite a bit, most likely) on your local craigslist in the "Auto Parts" section. Collector car guys could buy some of this oil for three bucks a quart, if you stress it's the earlier API designation (SF, SG, SH?) that still has lots of zinc and phosphorus in it (for older flat tappet engines). The transmission fluid can also be sold in this way. I've been in this same situation of liquidating slightly older, but still quite "modern" oil quarts before, and this is the only thing I've found that works.
As Old Gas guys posted on your other inquiry about the value of the Shell sign you inherited.....we understand you're hoping to find decent value in the items you've inherited. Who wouldn't be? But, there's no home run among any of the things you've inquired about so far. If you find something much older among the goodies you're inherited, the story could be different.
Best of luck with your disposal sale! John
Last edited by Jolly-John; Tue Aug 06 2019 09:31 PM.