This question has come up several times that I can recall. Mobil, I believe, has said that oil more than five years old should not be used. Some folks here believe otherwise, and that older oil is fine, and have used old oil.
Lake Speed, a well-known oil geek, has done some tests to see what happens to older oil. This video might just answer that question. If nothing else, perhaps it will generate some lively discussion.
Lake Speed, a well-known oil geek, has done some tests to see what happens to older oil. This video might just answer that question. If nothing else, perhaps it will generate some lively discussion.