@kschachn To your larger point earlier, attributing blame without verifiable proof is mere speculation and irresponsible. Correlation does not equal causation. It's basic folks!
A group of people that may have happened to be using Amsoil in a problem prone outboard motor gives the oil (Amsoil in this case) the "under the bus" treatment because it's not a major brand and was low hanging fruit decades ago. Meanwhile, that small circle of people have tarnished a brand in their minds! Sad!
For spits and giggles, I googled this search "early 2000s Yamaha VZ300 failures" and more information suggests several modes of failure could have existed; especially in the earlier models before corrective action was taken by Yamaha.
ADDED: One example of someone doing a series of videos diagnosing a failure on one of these (their conclusion was injector failure at the 7 minute mark):
Sadly, it sounds like if this did happen, those folks may have had legitimate legal cases, but got played the "Amsoil" brand card is to blame.
And, since that was the result for some of those supposed individuals, they never pursued getting justice and just accepted defeat.
Amsoil was never the issue. (as we knew was likely all along)
And, I look forward to continuing to use their superb products! Happy customer for life.
