[Utah-astronomy] Low Temperature Grease

Can anyone recommend a locally available low temperature grease suitable for use in my Vixen GP-DX? I spent all day yesterday pulling the mount apart and degreasing it. Last night I applied an expensive fancy cryogenic grease, a dollop of which I got from work. After working the surfaces the darn thing locked up, I suspect the grease has reacted with some of the aluminium surfaces and possibly the teflon washers. I now need to find a good alternative quick! Cheers and happy new year, David