Just wondering what Brand and/or Type of grease people are using for their boats/trailers(not for inside the motor, i'll leave that to the boat mechanics when they service it for me). 

Dont know what has been previously used on my boat trailer but want something for the bearing buddies for the wheels and to grease up the hitch brake. I have used just normal Castrol multi purpose grease once in the past in my grease gun to top them up and refresh it. But wondering if there is a specfic type which would be better, the multi purpose Castol Blue stuff has worked fine since the last time i put it in but then again i dont drive very far to the ramp so they dont have much of a chance to heat up. I am planning on doing some longer towing periods in the future and have been told that apparently you need a grease that has a high temp rating for disc brake trailers and obviously highly water resistant too.

Any advice on what other are using would be most appreciated.

Out of interest have also notice some grease nipples on the mount for the motor, the part the hydrolics raise and lower, and the steering arm/ram? was wondering what grease i should use for those nipples?

Thanks, Buz.