I have been using 25+ year old oil. I have 3 brands left and still use it when I can. Some of it is 20W50 so I don't use it just anywhere. There is nothing wrong with it at that age.
I ran the last of it my 25 year oil rottela this past summer in my 2002 Cat C-12 turbo diesel making 505 HP in my frieghtliner. 2002 is old enough to use my old oil. I have had the motor for 15 years now and have 90K + miles on my toterhome.

7-8 years is nothing, use your old oils with confidence.