Been using the Primrose 357 for several years. I think it's really good grease, but it's expensive. Need to order more soon, but debating whether to re-order from them or not due to cost. I do think we have less bearing failure with it since we switched from the local co-op grease. Maybe I just answered my own question, but I do want to check the price of the JD polyurea grease, have heard good things about it, too.