your welcome to disagree Tiny, but I took "I read an SAE report a few years ago comparing oil bath ... " to be fact, which maybe isn't always safe on the net, but I'd take an SAE opinion over, say someone's who doesn't understand the way they function, and the guy at Yesterdays Tractors was explaining the way they work, not giving an opinion, and as Jeff points out, there's no air bubbles involved - it's certainly a matter of personal choice, but the oil bath does do a good job if it's correctly used and maintained, the same as the paper filters do if "changed when needed", under normal city conditions

so the answer to the original questions is: "not better, just different" take yer choice grin

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics