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It's expensive, but is it better than polyurea grease? Is it compatible with polyurea? BTW, I have google searched "lithium sulfonate" used in Cobalt grease, and there's very little out there.
 

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This may be an unpopular opinion but I use the cheapest grease I can find. There's nothing on the tractor that's under extreme pressure or heat or even spinning, other than u joints.
It's constantly in dirt and dust. Hit it with a shot of grease before use and in theory should be fine. Use the money saved on grease and buy a battery powered grease gun.
 

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It's expensive, but is it better than polyurea grease? Is it compatible with polyurea? BTW, I have google searched "lithium sulfonate" used in Cobalt grease, and there's very little out there.

I settled on two greases, for two different purposes.

Castrol Pyroplex Red as it's GC-LB so it can lube everything from ball joints and steering knuckles to wheel bearings.

On the backhoe and loader and the truck slip yokes I use Pyroplex Gold as it's 6% moly. A bit pricey but high moly grease holds better on things that don't turn fast. Moly isn't recommended for U joints or things that turn fast.

Honestly though I think as cpm324 says for most things grease is grease and the frequency of greasing is more important than the quality or brand.

Anyway, somewhere online is a good discussion of urea versus lithium sulfonate based greases as well as moly in grease. I don't often repack wheel bearings any more but having a grease that is also GC-LB rated makes it so one could use just one grease for everything.
 
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This may be an unpopular opinion but I use the cheapest grease I can find. There's nothing on the tractor that's under extreme pressure or heat or even spinning, other than u joints.
It's constantly in dirt and dust. Hit it with a shot of grease before use and in theory should be fine. Use the money saved on grease and buy a battery powered grease gun.
I have to agree here. I buy whatever is on sale at Walmart and call it a day for everything on the tractor. I've been pretty happy with my air powered grease gun:


Doing the mower spindles with a hand pump grease gun got old fast. :)

Best,
 
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