Moly grease vs. red lithum grease? - Honda Shadow Forums : Shadow Motorcycle Forum
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post #1 of 18 (permalink) Old 03-25-2019, 04:04 PM Thread Starter
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Moly grease vs. red lithum grease?

Is there much of difference between the two? Red lithium grease is used for boat bearings, high temp, water resistent etc.



I ask because I have a can of red lithium grease and I'm going to be taking off my back wheel so I figure the shaft drive spline will most likely need to be regreased. Is it worth to go buy some moly grease?


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post #2 of 18 (permalink) Old 03-25-2019, 04:33 PM
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Moly is what is called for but I am sure any good grease is better than dry splines. The moly is maybe "slipperier", and like a graphite black base.

The drive splines are just splines like on a yoke of a drive shaft on a car or truck and many of them never get greased.

The factory may think that the splines will very rarely get attention so Moly is the best choice for a lone term.


For less than $4.00 at walmart maybe worth a trip there.


https://www.walmart.com/ip/Super-Tec...-Tube/16928003


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post #3 of 18 (permalink) Old 03-25-2019, 05:19 PM Thread Starter
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I can drop by Wal-Mart for that. I didn't see prices that low.

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post #4 of 18 (permalink) Old 03-25-2019, 06:01 PM
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I believe that Slick50 contains moly

I am coming from an older Triumph Tiger background.
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post #5 of 18 (permalink) Old 03-25-2019, 06:07 PM
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Originally Posted by tjkoko View Post
I believe that Slick50 contains moly

Slick50 in his case?
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post #6 of 18 (permalink) Old 03-25-2019, 07:12 PM
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Slick50 in his case?

Just an fyi.

I am coming from an older Triumph Tiger background.
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post #7 of 18 (permalink) Old 03-25-2019, 07:36 PM
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I remember guys here talking about the moly recommended by the factory and they said it is no longer available? Supposedly thicker than what is commonly available.
But here is what my manual says and it sounds like what you can by at Walmart may be just fine.
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post #8 of 18 (permalink) Old 03-25-2019, 08:58 PM
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Honda final drive splines require moly paste. The specs have changed over the decades. They discontinued Honda Moly 60 and replaced it with Honda M77. There are a number of equivalent products out there. I use Loctite Moly Paste.


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post #9 of 18 (permalink) Old 03-26-2019, 10:15 AM
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http://motorcycleinfo.calsci.com/Shaft.html#Grease

Spline Lubricants

You need to grease your drive splines each time you change your rear tire. This is true for all shaft drive bikes, regardless of brand. This is a real issue: ask any BMW rider, or any old-time ST1100 or GL high mileage type, and you'll likely get a whole lecture about spline maintenance. The lecture may or may not be informed, but it will demonstrate real concern.
The drive splines get surprisingly hot. Additionally, there's a lot of pressure on the splines and a lot of back and forth sliding motion. Any liquid type of grease will quickly be squeezed out of the splines, and leave you with no protection. The first time you remove your rear tire, you will likely find that the factory grease has dried out completely and solidified into something which does not even remotely resemble a lubricant. Actually, if it's a good Moly grease, it's still doing its job in this form, but it's not a pretty sight.


Honda makes M77 to replace the old Moly 60.
Honda specifies a spline grease which is 60% molybdenum disulfide ("moly"). Moly is a dry lubricant which bonds to the metal surfaces, offering lubrication properties even when the parts have squeezed everything liquid out. A lot of greases now say "Moly" on the container, but you must be careful about this. Ford and Caterpillar specify moly greases for particular applications, but the requirement is for 3% moly, not even close to the 60% requirement of Honda. It's not enough to buy a moly grease, what you really want is basically dry moly in a grease-like carrier which makes it easier to apply.
These days, most BMW shops seem to be using the Honda moly paste on drive splines. I have no idea what Kawasaki, Yamaha, or Suzuki dealers are doing, but if it's anything like what most Honda dealers are doing, it's simply not acceptable. My informal survey of Honda shops, backed up by observations from several other riders, has convinced me that essentially none of them use Moly-60. They use the cheapest brake and drive shaft grease they can buy.
If you let a dealer or shop change your rear tire, be certain they are using Moly-60 paste or Krytox, or you're going to be needing new drive splines in about 50,000 miles. Guaranteed. I recommend you remove and replace your own wheels, leaving the spline cleaning and lubrication up to you. If you want nothing to do with this, then I recommend you have a talk with your favorite mechanic before tires come up, and buy your own tube of lubricant if necessary.




Moly greases with 60% + molybdenum disulfide content:
  • Honda Moly 60 paste, $9 for 3oz, pn 08734-0001 at your Honda dealer, or $8 from Kim Leong, STOC 3073, California Sport Touring.
  • LocTite Moly paste, 65% molybdenum disulfide. $20 for an 8oz tube from Enco, part #505-1197, 800-873-3626
  • TS-70 Moly Paste, 4 oz. ctg. $14 from TSMoly. (800) 508-5545
An alternative to moly is the new poly-flourinated lubricants made by DuPont called Krytox Teflon Bearing Grease. These chemicals are simply magic. They have almost no known solvents, are chemically inert, and don't burn at any temperature, even in a pure oxygen atmosphere. This is pretty clearly the only grease to use. See this article. Nascar mechanics have found that Krytox grease can reduce the temperature of spline joints on drive shafts by 150. Also, this stuff lasts forever. It is, unfortunately, quite expensive.


Krytox is compatible with moly - in fact DuPont sells a high pressure Krytox which mixes the two. You may hear some horror story from some mechanic about mixing greases and the result turning radioactive or some such. Don't worry, it won't happen with moly or Krytox.




Krytox greases:
  • DuPont XHT-AC extra high temperature anti-corrosive Krytox. $30 for a 2oz tube, pn 10195K25; $113 for an 8oz tube, from McMaster Carr.
  • DuPont XHT-BDX extra high temperature extra bonding Krytox. $63 for a 2oz tube pn 10195K22; $230 for an 8oz tube pn10195K24 from McMaster Carr.
  • LocTite Krytox HyperLube, pn 29711. about $35 for two ounces.

Honda replaced the Moly 60 with M77.




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Last edited by h13man; 03-26-2019 at 10:19 AM.
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post #10 of 18 (permalink) Old 03-26-2019, 11:00 AM Thread Starter
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This is more complicated than I thought, it's why I started they thread. Looked it up and moly grease is nothing like the moly paste especially price wise.



Looks like I wouldn't need much of the paste so it may be worth the money to do it once. My bike is 20 years old with 50K miles on it so I like to do everything if I take something apart, I would bet no moly paste has been used on this bike since it left the factory. Clean, adjust, lube is the routine for now with everything.


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