stopped by AZ today and got 3 bottles of my02 and 3 of my04. The 02 stuff should still be fine right? Getting kind of old. I opened one of the bottles just to see the green. That shouldn't affect storage of a couple months should it? Can't decide which to put in first, M1 5w30, M1 T&SUV, or GC. I probably won't be driving my car for a few months but I want to put some of the new oil in now!! Car is a LS1 Trans Am. I think I'll put the M1 5w30 in till it gets hot outside.