Last week went to a local Big Lots store. I saw some Pennzoil syn blend + oil. I got 31 qts total of 5w30 and 5w20. My friend said that oil was old and not to buy it. He does not read the BITOG site. I told him this oil was ok to use and it was a great price. I plan to get more for my stash. Any opinions on who is right here..