lucas
I don't know about Bob the oil guy and his demonstration but i have used the Lucas oil stabilizer in my semi for a few years now.I use it in the rearends,engine, transmission and mix it 50/50 with gear oil and run it in the trailer hubs.Sure i was hesitant to use it at first but when i first tried it i noticed that my oil temp ran a little cooler and that alone told me it had to help.As far as the rearends go i run 80/90 gear oil mixed with the Lucas.So one day me and a buddy was running together and his truck has synthetic gear oil in the rearends and i asked him what temp his rearends was running and mine was running the same as his with the synthetic oil.This is my experience with the product.As far as Bob the oil guy goes doesn't all oils drain back into the pan because if they don't this is news to me.