Can't miss and opportunity to contribute to an oil thread. When moving,,, I discovered a 5 liter jug of Amsoil,,, that I had always used in my CB900c (which I still do, btw). Anyway,,, the amsoil was a bit over 20 years old. So I contacted Amsoil and asked if it was still okay,,, after all,, it still smelled the same,, and felt the same,,, but there was no expiry date on it. Amsoil laughed,,, and said, NO !! I ask why,,, and they said it was OLD. So I asked what happens to it with age ?? They said that they did not know. So I asked what the shelf life was considered to be,,,, and they hesitated and then replied something along the lines of "how about 1 year". I said,,, you must be kidding,,,, would you like to have this oil back, for free,, to test for deterioration so that we can all know ?? They said NO,,,, we are not in the business of dealing with OLD oil. I think I was starting to get on their nerves. So I put it in the bike,,, and it ran just like any other change of the same oil. Essentially,,, Amsoil did not know, and did not care. The next change was over to Rotella T3 (which is now T4),,, which I buy in bulk,, for 3 bikes and 2 sports cars, and helps keep costs down,,, Cheers,, Cat'
