So the consensus around here seems to be that LOS is just thick group I oil that has no benefits beyond what you could get from using a thicker regular oil, while diluting the additive pack. I'm asking for dissenting opinions on it. Do you believe it does something special and if so, do you have any personal experiences with it fixing problems with your cars? I used it to quiet a rod knock on a Samurai, and it worked to some extent, but thicker oil might have as well.