I've been using no toil for a while and like how easy it is to clean my filter. Just don't let the filter too long without service because it dries up sooner than regular oil filter.
Evolution Air filter oil has all the great dirt stopping tackiness and high air flow characteristics as the original No-Toil Filter Oil, but without the alcohol. Evolution is compatible with any brand of air filter and, without the alcohol solvent, the foam element will last longer and glue seams won't delaminate. Evolution is compatible with the original No-Toil Filter Cleaner and cleans amazingly easy and quick and will shock your senses with how clean it will get your dirty filter. For the oil to tack up, it may take as long as five or more hours. No-Toil recommends letting it set out overnight before use.
Note: The water carrier drying time will vary depending on climate and relative humidity and will require at least 5 hours to "tack up" sufficiently for use. Overnight drying is recommended. Acceleration of drying time can be accomplished by direct sunlight or fans. The (2) filter system is recommended where one filter is always on the bike and one being "prepped". For those riders who don't have time for Evolution's longer drying time, then the original No-Toil filter oil is the correct choice.