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I want to lube my sherman but my LBS doesnt have prep-m grease which manitou recomendes. Has anybody used Weldtite grease to lube their fork? How does it work and is it seal friendly? O yea, and which oil can i use for the TPC? I have a synthetyc 5w-40 motor oil. will it work? Thanks!!!
 

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Singletrack Addict!!!
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For the grease I would't know. But if you mean for damper oil, you should only use suspension oil, 5w(recommended) or 7.5w if you want to increase damping a little and slow shock a bit should be ok. Do not use any other oil in damper, however I replaced oil in a low end manitou sx with powersteering fluid (dextron)and it worked great, and I know some here have used it also.
 

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oil - that motor oil can work for "semi-bath" lowers, but is not a good idea for the damper. Check with a motorcycle shop for a 5wt fork oil (synthetic if possible) and it should be fairly easy to find, and will be cheaper to boot.
 

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Meh.
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Not all 5wt oils are created equal. The actual viscosity of different brands can differ significantly. Manitou specs their forks with Motorex 5wt. The dampener is very sensitive to non-stock oils.

Don't use ATF or any motor oil that contains seal swellers. It can dissolve the seals. You can use a motor oil in the lowers for the semi-bath lubrication.

Manitou Prep-M, Buzzy's Slik Honey, Rockshox Judy Butter, Finish Line Stanchion Lube are all fine for greases. I don't know about the one you suggested. I never grease the exposed stanchion. It usually just gets covered in dust. When I have the fork apart, I'll just pack a bunch under the seals/wipers.
 
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