I just recently purchased a 1985 300tdt and have been fixing it up.
One of the issues was the sunroof. It worked very rough and squeeky. I was told that you need to use a lubricant that wont attract dirt and dust or you will be constantly cleaning & re-lubing it. After some internet research I came across Krytox. It is about $35 for a 1/2 ounce syringe. I used it on all the contact points on my manual sunroof. It only took a very small shot in each area and after a few operations to work it in was very good. The sunroof operates like new, very smooth and silent. It now takes about 25% of the effort to operate the sunroof. It was worth the price just for the sunroof and I still have an almost full syringe to lube all other friction points on the chassis.

Just thought I would pass on a tip for a great product.

Um, for 50.00 from MB you get 1/2 POUND right? am I right? is this thing on?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Krytox is a lubricant designed to be used in cleanroom environments where outgassing of various substances like petroleum products & silicones would contaminate wafer processing operations.

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Nate Stanley
(Currently Benzless)
1985 F-250 6.9l 170K
2009 SCION XB 36.5K
2003 LS430 78K
2012 Kubota B 2320

A 20+ year old diesel; definitely the proper application of an inert lubricant like Krytox. Wouldn't want your roof lube bursting into flame, would we?

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Never a dull moment at Berry Hill Farm.

I read that farm equipment is lubed with a grease that contains krytox, due to its ability to withstand high pressure metal to metal friction points. It is also supposed to last forever in the application I am using it for. It is very clean and doesn't attract dust.

Though, I would have bought the half pound tub of MB lubrication Paste if I had found out about it before this thread.

What do you want? I'm new.

I am still happy with the Krytox even though I was apparently swindled.

I think it depends what happens long term. I have seen the results of non MB slide grease on my sunroof and it wasnt pretty.

After the amount of work (days of pure torture)it took to get my sunroof back to happiness I wouldnt put anything on there except the MB sunroof grease. Now the Krytox may work great until the end of time - just IMHO not worth experimenting when the 'right stuff' is easily attainable.

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'85 300D, 'Lance',250k, ... winter beater (100k on franken-Frybrid 3 Valve Kit)
'82 300D, 'Tex', 228k body / 170k engine ... summer car
'83 300TD Cali Wagon 210k, wife's car

That would probably only be on the green and yellow farm equipment...absolutely nothing cheap found there.

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Never a dull moment at Berry Hill Farm.

I've heard that Sil-glide (available at NAPA for $4) is adequate.

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1982 300CD Petrol/Black Leather

I have used krytox for several years. These were applications where other lubricants were not feasable. Have any of you tried looking at the lubricants available for firearms? There are several that don't attract dirt, etc that might work. I will agree that you should always use the recommended lubricant for the application, but sometimes it pays to try something else. By the way, there are several grades of Krytox, you bought one of the better ones. When we first started using it, we paid well over $100 for about the same amount, so you didn't get swindled. They also make an oil that is at least that much per oz.

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Habits I support
95 E300 D 220,000 & counting (I think I'll call him Fritz)
02 Tahoe (Momma's ride)
98 GMC Sierra 120,000
57 Chevy Nomad (bought in '69)