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KalGuard -Engine Guard

Rafael

Rafael

GT Reference
Joined
Feb 16, 2009
Messages
1,096
Location
San Leandro, CA
I've been using KalGuard Engine Guard as an additive in my transmissions (5 speeds) and rear drives for years, but not in the motor. Has anybody used it in the engine? Any opinions regarding using molybdenum disulfide additive in lieu of oil with API rating of SG? API SG has been supersede by SM.

thanks
 
Stop using moly everywhere. It is good for gears, but bad for bearings. I noticed bearing failure on a 98 EV from use of Moly. Just use good synthetic oils and you will be better off.
 
Has Guzzi stopped specifying moly for rear drives in the new bikes? They spec 'd it for the rear drive in the Tonti bikes.

john zibell said:
Stop using moly everywhere. It is good for gears, but bad for bearings. I noticed bearing failure on a 98 EV from use of Moly. Just use good synthetic oils and you will be better off.
Click to expand...

Was the failure in the engine or trans? How did you figure out it was the moly that caused the problem?

I remember years ago one of oil company was adding graphite to its motor oil. That product disappeared from the market after a while. Moly product is still around, granted not in a premixed motor oil. I just checked for moly bearing grease, a bunch of companies are still making that stuff. Is there a difference between moly grease and an moly oil additive?
 
Rafael said:
Has Guzzi stopped specifying moly for rear drives in the new bikes? They spec 'd it for the rear drive in the Tonti bikes.

john zibell said:
Stop using moly everywhere. It is good for gears, but bad for bearings. I noticed bearing failure on a 98 EV from use of Moly. Just use good synthetic oils and you will be better off.
Click to expand...

Was the failure in the engine or trans? How did you figure out it was the moly that caused the problem?

I remember years ago one of oil company was adding graphite to its motor oil. That product disappeared from the market after a while. Moly product is still around, granted not in a premixed motor oil. I just checked for moly bearing grease, a bunch of companies are still making that stuff. Is there a difference between moly grease and an moly oil additive?
Click to expand...


Bearing failure was in the rear drive where it is specified to be used. Inner bearing surface was extremely pitted (from the sulfur in Moly)from the moly. No moly is specified in the new CARC units, and it it was I wouldn't use it. BMW has used shaft longer than Guzzi and has never specified using Moly. A good synthetic oil is better than any moly additive. I wouldn't use a grease with moly either. Just good lithium or a synthetic product.
 
Cool, thanks, I’ve been using lithium grease as well for bearings. I suppose for race vehicles that get frequent rebuilds the moly additive might make sense.

Rafael
 
There are still SG rated oils available, you just have to look. I don't use "moly" or any other additives in my oil but I do use SG rated oils. The newer oils have less stuff that mucks up your catalytic converter. I no longer have a catalytic converter and even if I did I would care more about my bearings and valve train then it.
 
Guzzi never specified moly for tranny or engine oil, hence I would & never have used it there. On the other hand they did specify moly for rear ends in my Tontis-so I have done so, for almost 170k in my T3, 75k in my 1000S. The original gears are still in there, & per fairly recent inspection still serviceable. The moly has always been used with dino based rear end oil, as I found that synthetics in tranny/rear tended not to stay where they were supposed to in these bikes-but dino oil did. Going back to dino oil mostly or completely ended the leaks/weeping that synthetic oils created. Not saying that would happen to you, but did for me. Given how well the dino oil/moly combo has performed in the rears, I'm not about to change now. Naturally in my Norge I use synthetic only without moly, also as specified.
 
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