I want to start by saying I don't believe Foxtrots comments are intentionally misleading, however, they are inaccurate particularly relating to grease. First, its true grease is basically 3 components, however, those components are thickener, base oil and additives. There are other thickeners than soap, ie. Bentone and Silica. Lithium and Lithium Complex are the two most common and are in fact soaps.
Sure, if we want to get into lubricant's engineer 101, I can get out the Mobil bible go through every chemical and what it does. But for common knowledge here and commerical off the shelf greases - i.e. stuff that comes in tubes / kegs / etc. Not, made to order 5000lb totes.
Secondly, "460" refers to the ISO grade of the base oil. Such a heavy grade of oil is required for some extreme operations that basic tractor operations will never encounter. Base oil can be petrolium, synthetic or a synthetic blend, just like other oils. Some manufacturers continue to use Naphathenic base oils in spite of their poor temperature tolerences and lubricant abilitiy but the majority have gone to paraffinic stock while some use synthetic. The water repelling you refer to when addressing oil base is better talked about when talking about thickening agents. For example, Lithium thickened greases will emulsify moisture while Aluminum Complex is water proof.
A synthic 460 base oil would be fantastic for any compact tractor. Extremely low water wash out, high timkin OK load tests, great tempture range - Citgo's being from -40 to 195f, Conoco's being rated at -40 to 205f. If you need to go below -40 for a compact tractor, then you're already going to be using special ultra low pour point hydrualic fluids and engine oils.
Napthenics have gotten extremely rare and I would venture say the vast, vast majority of manufacturs today have stopped using napthenics. Especially as the majority of napthenic refineries have closed. The only 'regular' use today of napthenics is transformer oils. Sure, we could talk Aluminum complex vs. Lithium complex vs. Calcium based greases - but again, Aluminum and Calicum based greases are made to order and do not play nicely together. Trust me, I sell millions of pounds of Aluminum, Calcium and Lithium. Do not try to mix them. For off the shelf purposes, lithium is the most common, by far - and to me, the only one I was worried about while writing it.
While it is true there are only a few producers of base stocks, there are many manufacturers of greases and oils. The grease manufacturers or blenders will buy the base stock and create the grease according to their own set of standards. Whatever proprietary formulas they use is what makes some greases perform better than others.
Yeaaah... not really. I'll disagree with this, a lot. Oils? Yes, there are tons of ILMA's out there and compound blenders. However greases? Yeah, no. Battenfeld, Mobil, Citgo, Lubrizol, Chemtool... About it. As for 'proprietary blends' I would disagree with too. Most 'private label' brands - i.e. Tractor supply, TRC, Lucus, etc. etc. Do not buy enough to warrant there own 'blend'. As well, only certain additive manufactures make grease additives. So, you're going to be buying X company's base oil, Y company's additive package and Z company is going to blend it together. I could tell you who make's who's grease, but most of that information is confidential.
[quote
Grease is far more complicated than "Soap, Bright stock base oil and Dye." If you want to reduce your grease consumption and have increased protection, then go with an aluminum complex grease with a 3% Moly minimum. That leaves Lubriplate, Schaeffers and TRC. I'm sure there are a few smaller manufacturers that produce A/C grease with Moly, I just can't think of any at this time.[/QUOTE]
Personally, out of the 3 you just listed, the only one I would buy is Lubriplate. But, I wouldn't user an aluminum complex in a compact tractor. Lithium is more then fine for our purposes, the price range and use. If you were running said tractor in a 24/7 farm - then yes, I would consider aluminum complex. But, for a 1026r? Lithium Complex is my vote.