moly additive?

[Edward Kollin]

Originally Posted By: Taylor
at what levels do corrosive wear begin?


I am referring to the use of moly DTC. These are what I have observed in a wide variety of formulations.

Moly DTC caused observable corrosion in mildly thermally stressed oil.

100ppm Mo-copper
300ppm Mo-lead,tin

Ed

 

[Tempest]

Edward, I'm sure you haven't tested this in a lab, but would you expect any corrosion problems from the use of moly in firearms?

 

[Edward Kollin]

Originally Posted By: Tempest
Edward, I'm sure you haven't tested this in a lab, but would you expect any corrosion problems from the use of moly in firearms?


I've tested some moly (500+ ppm moly) firearm formulations and they worked pretty well. The most arduous test was a helicopter gun ship that glowed red in use. Needed stable basestocks and temperature stable inhibitors. There was no trace of corrosion.

Ed

 

[Tempest]

Thanks Edward. Would you expect anything different from lubes that use large quantities (oil is black) of solid MoS2? There are a few brands of gun oil (probably re-branded industrial oils) that are advertising this feature.

Quote:
helicopter gun ship

30mm chain gun?

 

[-SyN-]

http://www.beansdieselperformance.com/st...t/prod_127.html

This is what I add with my winter oil change... Great Product by a great company..

 

[Edward Kollin]

Originally Posted By: Tempest
Thanks Edward. Would you expect anything different from lubes that use large quantities (oil is black) of solid MoS2? There are a few brands of gun oil (probably re-branded industrial oils) that are advertising this feature.

Quote:
helicopter gun ship

30mm chain gun?


In my experience MoS2 does not work.

It was a Dillon M134D Gatling Gun. It is a six barreled, electrically driven machine gun using 7.62mm NATO rounds and fires at a fixed rate of 3,000 shots per minute.

Ed

 

[Tempest]

Thanks again Edward.

I had the opportunity to buy about 2 seconds worth

of time on a GE predecessor to the Dillion unit. Quite the experience at 75 rds per second (that is what the owner said it was set for).

 

[chazzone]

Can you give some insight as to why you think you got different results than Bob?

Is Bob's study a scam?

Is there some variable that could make a difference?

I appreciate your time here.

 

[scoobie]

In my own experience, with my last oil change, i left the filter in, and added another 200ml of MoS2 suspension. this morning was at the freezing point. when i started the engine it immediately started going BANG BANG BANG BANG BANG, it took about 10 seconds to quiet down. i think the filter was clogged with MoS2 particles. the engine was starved for oil until the bypass valve let enough oil through to lubricate it.
I drove to Walmart with a jug of fresh oil, no MoS2 in it, and new filter. after that the engine started and ran perfect.
After this, I'm adding NOTHING to the engine oil any more. I will
mix 5w20 and 5w30 in the winter, because this will give better cold performance: even though both are 5 when cold, the 5w20 has better cold properties. rather than wasting money on additives, it is better to keep the money in your pocket and spend them more wisely.

 

[chazzone]

Lets see...you left a spent filter in your rig and added moly, and were surprised that you clogged the filter.

Yeah, I can see why you wouldn't use the moly...

-zz

 

[stray]

anyone have any input on this stuff? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230322622700&ssPageName=ADME:X:RTQ:US:1123

 

[Crashbox]

Originally Posted By: stray
anyone have any input on this stuff? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230322622700&ssPageName=ADME:X:RTQ:US:1123


There's a very unusual typo in that ad, check it out...

 

[demarpaint]

Looks like he bought some Moly that some of the re-loaders use to coat bullets and re-packaged it for auto use. His spell checker must have been down that day, he had a few errors.

Since its a powder that is added to a qt of oil and shaken I wonder if the filter would pick most of it up? I would imagine you can do the same thing with Tungsten Disulfide as well.

I think I'll pass.

 

[vxcalais]

http://www.eng-tips.com/viewthread.cfm?qid=228937&page=4

Great pics of how the Liqui Moly looks when mixed wiht the engien oil, mine looked exactly like this. Satisfy yourselves with the topic though.......intriguing.

 

[Tornado Red]

Originally Posted By: scoobie
Hi, I am a proud user of that "snake oil".... Molybdenum is becoming expensive, so oil companies will only put in the minimum amount, in order to save costs. ..... I put in only 100ml or 150ml depending on the size of the engine/crankcase. ... This stuff works great, but one half a bottle per oil change is all you need. Any more than that is just wasted, and in order to be good conservationists, and conserve this valuable metal, just add 150ml per oil change for a large engine.


I agree with scoobie -- 150 ml is enough to blend with four or five quarts of engine oil, when using an oil which has little or no moly. Even after you drain that fill, a test at the next drain interval will still show reduced wear from the residual moly.

Check out Dmitri's UOA on a PD TDI, using M1 TDT and 150 ml of LM MoS2. Outstanding.
http://forums.tdiclub.com/showpost.php?p=2528513&postcount=26

 

[fito]

Schaeffers #132 Moly oil additive is really great stuff and works.

 

[MikeyG]

Not sure that Moly would actually clog an oil filter.

Refer to "Constant Lubrication is Vital"
http://www.molyslip.com/WebPDF/E-Data-Sheet.pdf

http://www.carjunky.com/news/motor_oil/mom7.shtml

"First of all, the statistics previously mentioned regarding engine wear haven't changed. 60% of all engine wear is caused by particles between 5 and 20 microns. Unfortunately, most oil filters on the market today are lucky to remove even a small percentage of particles under 30 to 40 microns. This, again, leaves most of the harmful debris in your oil."

 

[SuperDave456]

I went out to their website and had a difficult time finding that. It is under "specialty lubricants".
Looks very promising. I know alot of people who drive for a living doing sales, they either run Amsoil or Schaffers.
I'd rather use this stuff than something someone found somewhere and sold on e-bay.

 

[buster]

Quote:
We tested moly disulfide nanopowders when I ran the engine lab at Exxon Research. It offered no consistent benefit for fuel economy or wear. I had visible light micrographs, electron micrographs (molecular resolution), scanning tunneling micrographs (atomic resolution) and surface spectroscopy (XPS) results. It was obvious that the MoS2 did not react with the steel surfaces. Occasionally it could be burnished on to a surface.

Moly DTC offered only short term benefits (2000 mile) and it wasn't until we created the moly trimer did we see good fuel economy retention.

Ed


Interesting, thanks!

 

[ltslimjim]

Interesting discussion, this may be why Artem noticed a copper spike in one of his apps when he switched the RL from Amsoil, with that much of a 'shock' from moly increase it was bound to create some surface corrosion switching from an oil with lower levers of moly. The question is, would that trend away or continue 'corroding'?