'IF' using canola oil, the only downside l have experienced is bar nose sprockets siezing if bars are stored for prolonged periods (say 3 weeks or more). lf you use canola and you want to store bars with sprockets they need cleaning/drying and a few shots of bearing grease in the nose sprocket hole. Other than that it performs as good as conventional bars oil, you can spray it all over someones backyard and the resident dog will lick it up!lol Run your oilers on high and if using filtered oil used to cook fish and chips thats perfectly fine.....you will just have the resident K-9 licking your saws when your not watching! lts a far better option if working near veg gardens, over fish ponds ect. After runnig canola in many saws for many years it's VERY hard to go back to petrolium stuff, you simply will not want to.