quote:Ten years! Oh Boy! And I thought my stash was maxing out at 80 quarts. Now I can double it. Just kidding. But I might go as high as 100 quarts just to say I did. Of course there will be bottle arrangements and photographs too.
Originally posted by k1xv: I think 10 years in sealed containers is probably safe, provided the containers are plastic bottles or something similar.
quote:Motor oil is refined. In your engine it wants to revert back to sludge (crude oil) and will if you let it stay in there long enough. This is simple entropy, just like the steel in your car reverting back to iron ore. However, a closed oil container is fairly well isolated from the elements that would cause its entropy (particularly if kept in a cool place like a celler) and therefore may have a near indefinite shelf life.
Originally posted by Ray H: Petroleum is the byproduct of dead plant and animal decay - can't rot no more.
quote:The shelf life of oil is related to the temperature at which it is stored. See the article, Lubricant Storage Life Limits - Industry Needs a Standard, from the Noria Learning Center: http://www.noria.com/learning_center/category_article.asp?articleid=172&relatedbookgroup=Hydraulics Especially see Table 1 which states that low temperature and low temperature variation are factors in longer lubricant shelf life: http://www.machinerylubrication.com/Backup/200005/storage_life_tab1.gif Also see Tables 3 through 6 where major oil companies, minor oil companies, and industry experts give various educated guesses at shelf life. Anyway, I will continue to keep it in my cellar. Can't hurt, likely will help. As for motor oil reverting to crude oil in your crankcase, well only in the widest sense of the word crude. You can run it (if the engine will keep running) into a pretty nasty gummy mess. I could have stated that part better.
Originally posted by Ray H: "Cool celler"? Pshaw! The MSD sheets state "indefinite stability" for finished motor oil product at any ambient temperature suitable to human tolerance. This is motor oil, not wine. Nor am I at all sure about the simplistic, across the board claim that spent motor oil has reverted back to crude petroleum, either.
quote:I can never accumulate much oil. I go thru it to fast. Except for paying for all the oil, most of you would love to have all the oil testing I could do. It would be a constant playground for trying new stuff. At least I have the empty bottles...
Originally posted by TallPaul: Ten years! Oh Boy! And I thought my stash was maxing out at 80 quarts. Now I can double it. Just kidding. But I might go as high as 100 quarts just to say I did. Of course there will be bottle arrangements and photographs too.
quote:Under, "...10.Chemical Stability:... ...Stable..." True, unlike many MSDSs I've searched, the Valvoline MSDS doesn't read, "indefinitely" stable, but, neither does it place any qualifying limitations before or after "stable", either. You and others are certainly welcome to disagree with my interpretation of the syntax Valvoline chose.
Originally posted by TallPaul: ...I can't find the "indifinite stability" statement in the Valvoline All Climate MSDS...
quote:Seems like it is anybody's guess as to oil shelf life, but I feel fairly confident that 5 years in the cellar is a conservative enough estimate that I will stay out of trouble. Now, I need one more case to reach the 100 quart mark. Let's see what's on sale next week.
Originally posted by Ray H: You and others are certainly welcome to disagree with my interpretation of the syntax Valvoline chose.