I replaced the wheel bearings on my cousin's boat trailer yesterday using marine grease. I got to wondering after reading the label on the grease tube, why can't I pack the bearings on the burb using this grease? Are there any reasons why not? I thought about how well the maring grease would hold up to the heat generated by the bearings (I have been using Havoline synthetic - holds up great but doesn't like water). Any thoughts on this?