Treadmill Lube on YJ Yulong = Some Expensive Speedcube lol... (P.S. Been doing this for a couple months and no side effects to be seen or felt) : r/Cubers
D-FantiX Gan Lube, Gan Cube Lube Professional Speed Cube Lube Lubricant Oil 10ML (Pack of 2) : Amazon.ca: Health & Personal Care