Hello Well, I just found some sort of plastic or Neoprene Auger Bushing around the steel Auger in the Pelpro HHPP2BD pellet stove I am working on. It is a little noisy. What is the best lubricant for this plastic bushing? The Travis pellet stoves use a SAE 841 oil impregnated BRASS bushing around the steel Auger. Englanders use a bearing with a grease fitting around their iron augers in their double auger horizontal feed systems used in the 25-PDV and 25-PDVC ! What do you have in your stove and how do you keep it running smooth so the flame is the height that it should be? See yellow arrows pointing to plastic auger bushing in pic below.