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I'm getting differing opinions on marine grease. I was told I should use this on the Poly bushings I've installed but not on other applications...u-joints etc. It seems to me that this would also be ideal in that application...anyone have any thoughts on this?
The best grease is with the highest content moly-d you can find.
It will be an EP grease with far superior stickyness, high temp, water resistance, and lube quality.
For example, this type of grease is used in high dollar, deep mining machines in wet, dirty conditions, both on bearings and sliding surfaces.
From: Graceland in a Not Correctly Restored Stingray
A primary quality you're looking for when lubricating poly bushings is a grease that resists wash-out, so marine grade and/or synthetics with that quality are very well suited. I believe Energy Suspension packages a grease for this application, as well.