Originally Posted By: scottm1
I just bought a new Scag Turf Tiger mower. The owners manual says to grease the mower spindles with Mobilix #2, or Timken Lithium Multi-Use #2, or Shell Alvania #2, or Lidok EP#2. (snip) I currently have 2 grease guns I always used on my vehicles and other mowers. One has Lucas Xtra heavy duty(green in color), and the other has Lucas Red n Tacky(Red in color). (snip) Does anybody have any opinions on these 4 greases my Scag manual refers to and is there anything special about them over the Lucas greases?
Well, let's see what they are recommending by looking at the product data sheets:
Shell Alvania 2 has been discontinued. See:
Shell Avania 2 Discontinued
The above notes that Shell Alvania RL 2 is the replacement from Shell. The RL 2 data sheet follows:
Alvania RL Product Data
The data sheet notes that they are really nothing special, just a lithium soap thickened non-EP grease:
Quote:
Shell Alvania® Greases RL 2 and 3 are smooth-textured, amber colored, non-EP, lithium soap thickened greases. These greases are also inhibited with additives that promote long service life and provide excellent lubrication and corrosion protection. Alvania Greases RL are excellent as general plant and electric motor bearing lubricants. Shell Alvania® Grease RL 2 is readily pumpable in pressure grease dispensing systems.
The Timken grease also seem to be nothing special, just a lithium soap non-EP grease:
Timken Lithium Grease Product Data
Quote:
Timken Multi-Use Lithium grease is a lithium soap thickened lubricating grease. It is fortified with rust and oxidation inhibitors for protection and good service life. Timken Multi-Use Lithium grease is excellent for a variety of applications where extreme pressure is not required. Typical properties are listed below.
Lidok is also being discontinued:
Lidok Discontinued
But again, Beacon EP is nothing really special. This time it is an EP grease, but still lithium soap:
Beacon EP Product Data
Quote:
Exxon Beacon EP greases are premium quality general-purpose greases with anti-wear and extreme pressure properties. Beacon EP grades are formulated with paraffinic mineral oil base fluids, and thickened with lithium soap. Additives are present to control against rust and oxidation, and to provide protection against wear under loads common to general industrial service.
I saved the Mobilux for last, as all I can find are data sheets for Mobilux EP, which may or may not be the same thing.
Mobilux EP Product Data
Again, nothing special, lithium-soap EP grease:
Quote:
Mobilux EP 0, 1, 2, 3, 460, 004 and 023 products are a high performance family of five general-purpose industrial greases and two special-duty semi-fluid greases. These lithium hydroxystearate greases are formulated to provide extra protection against wear, rusting and water washout. They are available in NLGI grades ranging from 00 to 3, with base oil viscosities ISO VG 150, 320 and 460.
Now lets look at the Lucas products:
Lucas Extra-Heavy is a little different than the above - it's polyurea thickened, but is NGLI #2. I was fearing it might be thicker than 2:
Lucas Extra-Heavy Grease Data
But it notes that its NGLI 2, so this should work. Only problem may be compatibility with existing grease in the spindle, but the data sheet says its compatible with other greases.
Lucas Red-n-Tacky is a lithium-type EP grease. The only thing that gives me pause is that I don't see in the data sheet where it says its NGLI 2:
Lucas Red-n-Tacky Grease Data
Another thing that gives me pause about the Red-n-Tacky is that in my experience, it seems to be fibrous - hence the "tacky" part. There have been others here that don't recommend a fibrous grease for ball/roller-bearing applications, as it increases bearing temperatures and friction as the grease gets pulled back into the cage and has to be mechanically pumped out. This may be an old wives tale.
Do you know if your mower spindles are ball bearing or are they just plain sleeve bearings?
If plain sleeve, I'd use the Red. The Green, while NGLI 2, seems to me to be more appropriate for lower speed use. If ball, I'd probably buy Mobil 1 synthetic at the local auto parts emporium and use it.
Recently I did pack my trailer bearings with "Green Grease" (not a Lucas product) that did pretty well. If ball and you're going to switch from Lucas, I'd try the Mobil 1 or Green Grease. Might also try Amsoil greases.
later,
b