Landpride now uses the EP-000 in some of their sidedrives on their 2003 tillers. CCM will use this will use the EP-000 is all their tillers side gearboxes next season. If you have a NH56 or 256 rake that has leak problems EP-0 or 000 is the solution. In the early 1990's, tedders became increasing popular and we would have a 100+ of them on the lot, that we had assembled in the winter months. They would not leak until the temperature would reach 80 and then 20% of them would start to seep some oil. It was a nightmare because we would not have enough time to fix them during the season. We started using EP-0 and 000 in 1993 and have not had any problems since then. We learned of the uses from selling PZ hay equipment in the early 1980's. Their drum mowers all have used EP-0 since 1969. EP-0 & 000 are not for every application. Concerning mixing of EP-0 and Gear oil it's ok as long as the gearbozes have a standard oil seal design to retain the lubrication. Take for instance if a MFG uses a sealed bearing as the seal, with no oil seal, it is not a good idea to mix the oil with EP-0. In this situation, the oil can cause the air pressure inside the box to increase and the bearing seals will fail because they are just not designed for a pressure seal, often because the vent plugs are dirty and are not working properly. To much oil in a gear box will also cause the seals to fail as well. Stay with what the MFG recommends but if you do not have the time to fix a gearbox, EP-000 can be a quick solution to being back at work, and fix the seal on a rainy day.