Hi Sunnybob, I use a low viscicity grease, you need to be careful what grease you use as some can cause drag on the drive and consequently increase you motor loading, this is worse in cold weather when the grease thickens, I have some grease that is used on the pumped lub system for CNC machinery, if you want a hypo full e-mail me on vic.hanson@blueyonder .co.uk, regards, Aquarama.
