How to tell oil age?

From: Kurt Cypher (kcypher42.lists@gmail.com)
Date: Tue Jul 15 2008 - 15:45:41 EDT


I've got several containers of brand-new, sealed dino oil that my Dad
had in his garage when he passed away two years ago (my brother & I
are slowly clearing it out so Mom can actually park her car in it).
We have no idea when Dad got this oil, and would like to try to figure
out its age before putting it into a motor. Some basic internet
research says anywhere from 2-5 years shelf-life for motor oil, and
I'd rather not use this oil in a daily driver if it's beyond the
recommended shelf-life. Based on the fact that it was in his garage
two years ago already puts it at the short end of the shelf-life
ranges I've seen mentioned online, so I'm already figuring it's
probably too old. It's Pennzoil, and there was standard production
code info on the containers, but I have no idea how to read those
codes.

Any suggestions? If it is too old to use in a vehicle, any
suggestions on uses for past-its-prime motor oil (hate to see it
completely go to waste, just because it's old)?

Thanks,
Kurt



This archive was generated by hypermail 2b29 : Fri Aug 01 2008 - 00:06:48 EDT