Originally Posted by Wentjo
The oil on the twin air filter won't come off with No Toil cleaner, you have to use the twin air's cleaner. I tried that on mine and it didn't work very good.
Both oils work well in my experience but Twin Air oil is a beeyotch to clean. You have to use HOT water to help break down the oil. Hotter than you can touch. I got some Twin Air oil at a closeout for cheap, but none of the cleaner. I've been using TSP.
I also use Filter Skins to prolong the service interval of the filter.