I have 8 quarts of Carquest house brand 10W30 conventional in my stash. It is a little over 2 years old. I'd like to use it in my Dakota this winter. The CQ oil looks to me to be a bit thinner than the QS conventional 10W30 I have been using for a while now. That may or may not be so, it's just how it looks to me and is my own perception when I compare the two oils. Plus, I have it so I may as well use it. I would rather use it during the cooler months coming up. I have a couple of Caruqest Red Label filters to use up too, I bought those with the oil on a 5 quart/Red label for $11.99 filter deal two years ago. So my question here is I know name brand oil has a good long shelf life, 3 years maybe up to 5 years depending on how and where you store it. This CQ oil has been stored in a cardboard box, under my workbench in my non-climate controlled garage here in Central Florida for two years now. I am just wondering if anyone has any info or idea whether a house brand may have a shorter shelf life than the name brand oils, because of the differences in add packs? Thanks for any info here. I would like to use this oil if possible.