I was cleaning out my garage today and ran across some oil that I forgot I had. It is about 10 quarts of Syntec Blend, 10w30, API service SJ. I believe it is about 3 to 4 years old. Should I use or throw away?
Just mix it 50/50 with newer oil if you are nervous about it. If you're really nervous buy the latest version of exactly the same oil. Then if you're still nervous you could mix it oil/new 30/70. And if you're still.....
lawnmower, snowblower, pressure washer, etc, etc,.
using in your vehicle should be fine also. i would go the other route though, and buy new for the vehicle
Originally Posted By: ConfederateTyrant
The accepted shelf life of oil is 5 years. It should still be safe for use. Give it a good shake incase of some additive dropout occured.
Five years? Well, gee, some of the SL-rated Mobil and Valvoline at my local K-Mart has a sticker trumpeting a special offer that expires on 2/28/03, so that stuff is old, baby. . . .
.