"But as you know if oil bath were the best thing they would still be using it"
..well, maybe but OTOH the filter companies wouldn't get to sell you anything, especially since so many used their old motor oil to fill up the air cleaners. All I know is that they did a good job of keeping the bugs & butterflies out of the carb while letting the air in. I know it worked because I had to clean them as a High School Harry working in the gas stations. Ahh, the good old days.
