I looked at the Maxima K2 I have (It wasn't Motul like I thought) and found a manufacture date of 2018. I looked at the maxima site and found this statement.
"We guarantee a two-year shelf life for all of our products when kept sealed and away from extreme environments. There is a date code etched on each bottle above the back label. (Last two digits are the year). Products older than two years are not necessarily spoiled, but they should be poured into a clear container first and inspected for unusual appearance. "
With the dye I added, there is no way I could inspect it. It's a black opaque fluid at this point.
"We guarantee a two-year shelf life for all of our products when kept sealed and away from extreme environments. There is a date code etched on each bottle above the back label. (Last two digits are the year). Products older than two years are not necessarily spoiled, but they should be poured into a clear container first and inspected for unusual appearance. "
With the dye I added, there is no way I could inspect it. It's a black opaque fluid at this point.