Well i stopped by a buddy's shop today, he was in the process of cleaning out some of his storage cabinets. On one of his work bench's i noticed 3 unopened cases of 10W40 motor oil. I ask him what he's planing on doing with that oil.
He tells me he's going to take it to the parts store to recycle it. I'm thinking to myself why would you want to recycle new unopened bottles of oil.
He told me that he read on line, that if motor oil is over 5 years old, that it's no good to use anymore. I can't say I've ever heard of this before, but then again, maybe that's due to the fact that oil never sat around my shop for years, it always got used right away.
So when i got home i went on line and looked this up myself, and sure enough, there were a few different web sites that said you should not use oil if it's over 5 years old. They also said that storage temps in excess of 80 degrees will shorten the shelf life of not only motor oil, but also grease, gear oil, and trans fluid too, to less then 5 years.
That temp thing could be a real problem for Mud members who live in the desert southwest where temps in the summer time get WAY above 80 degrees. I"m kind of thinking these web sites may be financed by the major oil company's, and their view point may be a little self serving to help sell more motor oil.
So what do you think, should you throw away all the motor oil, grease, trans fluid, and gear oil you may have sitting in your storage cabinet if it's over 5 years old. Or sooner if you live somewhere were it gets above 80 degrees in the summer time?
He tells me he's going to take it to the parts store to recycle it. I'm thinking to myself why would you want to recycle new unopened bottles of oil.
He told me that he read on line, that if motor oil is over 5 years old, that it's no good to use anymore. I can't say I've ever heard of this before, but then again, maybe that's due to the fact that oil never sat around my shop for years, it always got used right away.
So when i got home i went on line and looked this up myself, and sure enough, there were a few different web sites that said you should not use oil if it's over 5 years old. They also said that storage temps in excess of 80 degrees will shorten the shelf life of not only motor oil, but also grease, gear oil, and trans fluid too, to less then 5 years.
That temp thing could be a real problem for Mud members who live in the desert southwest where temps in the summer time get WAY above 80 degrees. I"m kind of thinking these web sites may be financed by the major oil company's, and their view point may be a little self serving to help sell more motor oil.
So what do you think, should you throw away all the motor oil, grease, trans fluid, and gear oil you may have sitting in your storage cabinet if it's over 5 years old. Or sooner if you live somewhere were it gets above 80 degrees in the summer time?
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