Is SAE motor oil still good several years after purchase?


Old 04-14-19, 02:27 PM
Thread Starter
Join Date: Sep 2003
Location: Arlington, VA
Posts: 845
Is SAE motor oil still good several years after purchase?

I found some old Castrol SAE motor oil in the basement that never got used, one bottle is unopened the other is about half full. These were purchased at least 6 years ago, still usable or toss them?
Sponsored Links
Old 04-14-19, 03:16 PM
Join Date: Aug 2015
Location: USA
Posts: 381
it does have a shelf life but it does vary have read up to 5 years I probably would use it myself and not give it a second thought in a vehicle or engine that used oil, really up to you to decide what to do with it.
Old 04-14-19, 04:02 PM
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 19,274
I wouldn't drink it but it's probably OK for the lawnmower.
Old 04-14-19, 05:22 PM
ukrbyk's Avatar
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,414
Old 04-14-19, 06:08 PM
Norm201's Avatar
Join Date: Sep 2013
Location: Western NY on edge of eastern Lake Erie (not NYC)
Posts: 6,666
FWIW...if unopened and stored in a cool dark place, then use it as long a sit meets the specs of the vehicle or appliance.
Old 04-15-19, 02:53 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,028
I agree with Norm, as long as the quart is un opened and meets the specs of whatever you intend to use it in there shouldn't be any issues no matter how long it's set. I'd just use the opened quart for lubrication [oil can] or add it to several qts of fresh oil.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes