An earlier post got me thinking about what is considered "acceptable wear". The limits they show as acceptable is so much higher than what the UOA's show it is laughable at times especially Iron. If people had wear numbers that high members here would have a heart attack and demand immediate engine replacement or a call to the oil analysis company because it must be an error on their part. So how old are these wear limit standards? Were these developed when we used Group I and II oils? Maybe these should be lowered now.