Use of graphite or moly in diffs?

I swear by moly in landrovers and just about every thing else thats not going to be exposed to freezing conditions or salt water on a regular basis.

I avoid intentionally using it inside of engines but dont get upset if some gets in there.

Ive been doing it for years and as of about 3 years ago the ADF has switched the swivel hub lube to a special moly based grease.

so good enough for them, good enough for me...

Just dont go adding too much to diffs or tcase's it should still flow otherwise your going to have overheating problems due to poor heat transferance through the "oil".

Quote:

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Originally Posted by PhilipA

I personally met a VC Commodore driven from Singapore to KL with no oil but treated with Nulon( publicity stunt for launch in Malaysia) when I was a Trade Commissioner. I have no relationship with Nulon.
To answer the question on lifters, they fitted solid ones.
The car had a radiator hose blow off while idling on the causeway, yet still made it to KL with no oil. It was a wreck when it got there , but get there it did.

that show that teflon is good in that usage.

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The website that debunked Teflon I referred to earlier also shed some interesting light on this "old one"......

.......Nulon did the same with a Commodore driving from Sydney to Melb. sometime in the 80's.......lots of publicity and boy!, did they flog that in their advertising........not these days though, ever wonder why on earth not?:o .......

......Coz in the U.S. Briggs and Stratton Co. did a public demo wherein they took one of their engines, new, ran it in as normal, then drained the oil out and then ran it for "x" number of hours or even days.......it ran OK........was totally f****d at the end of it, but it did run the distance.;)

I did some research yesterday to see if there were any recent unbiassed tests.
I didn't find much but I did find that Du Pont now sells a line of greases an lubricants containing Teflon.
www.dupont.com/lubricants/en/literature/pdf_files/H-79785-1.pdf .

They also now do greases for bicycles which to me would imply that in this case teflon is OK in roller bearings.
http://www.sandsmachine.com/pace.html

Now Du Pont at one stage came out with a statement that Teflon was not effective in engines, but seeing they sell a grease, and talk about anti scuffing etc etc one would have to assume that they see benefits in Teflon in gear lubrication.

Even though Byron selectively quoted me ( not a politician are you?) , my point was and is that even though Teflon might not be useful in engines it is OK in transmissions.
Seeing no one has come back with a source for Molyslip or similar, I will keep using my Teflon.
Regards Philip A

The best oil for diffs is synth, why 2 reasons, 1st because if you get water in it will cook out as long as you keep driving and keep the diffs hot, second because synth is simply a better oil in most cases and gives better protection. I say in most cases because this is not the case in a flat tappet engine where you need zinc in the oil to make the cam live. Most modern engine oils lack zinc compounds to protect the cat convertors.