One guy on here had like several hundred quarts. A little nuts IMHO because by the time you are a little ways into it a better oil comes along (like HPL) and now what do you with the rest of the "junk" on your shelf?
Assuming M1 AP average is $30 you saved $15 x 23 = $345. Also assuming 5-6 oil changes a year it would take 3.8 -4.6 years to recognize that $345 savings. Now even if you used it all up in one year that is still only $345. I mean listen you hand me $345 yeah I’ll take it. But a couple hundred dollars is not a financial windfall.
Between my vehicles and what I give away - that’s a bit short …
I also have two 8 quart engines … supply a 7 quart and 6 quart not in signature …