Grease Compatibility Hell

[jyoutz]

The rumor is true. Lucas green is back in the stores. Bought some at Walmart today.

 

[jyoutz]

So far I'm hearing that the only way to safely switch from a polyurea grease to a lithium grease is to try to pump as much new grease through and hope to remove enough of the old incompatible grease as possible to avoid damage. My problem is that I don't think that will work with some of my steering components, and my Woodmaxx snow blower specifically warns not to inject too much grease for fear of damaging the seals.

Of course I also have the option of tearing it apart and cleaning out all the existing grease, but that is not going to happen.

It is hard to believe that equipment and grease manufacturers don't provide more information to prevent customers from falling into the polyurea grease trap. It kind of pisses me off.

I just ordered a carton of John Deere Multi-Purpose SD Polyurea Grease TY6341 via ebay.

Why would you want to switch from polyurea to lithium? Polyurea is superior in all aspects.

https://www.lucasoil.com/pdf/04_Greases_XtraHDGrease_PDS3.pdf

 

[gsganzer]

I understand the material compatibility charts, especially as it applies to bearings. Especially high-speed bearings like mower spindles, u-joints, trailer hubs etc. In those applications, I'd flush/repack the bearings if I made a change between incompatible greases.

But I wonder how big of a deal the compatibility is on simple bushings and pivot pins, like you have on loaders etc. You obviously wouldn't want to keep swapping back and forth, but I'd think if you made a change from poly-urea to a lithium complex and then stuck with it, I wouldn't expect there to be much issue.

Does anyone who's smarter than me know?

 

[gsganzer]

Why would you want to switch from polyurea to lithium? Polyurea is superior in all aspects.

https://www.lucasoil.com/pdf/04_Greases_XtraHDGrease_PDS3.pdf

I think most trailer hub manufacturers recommend the red lithium complex, but maybe I'm mistaken.

 

[Yander]

I like Lucas products, but for grease y'all wasting your money.

https://www.ruralking.com/mystik-jt6-high-temperature-multi-purpose-grease-14-oz-10001200

This is better than their HD green. Prove me wrong!

 

[gsganzer]

I like Lucas products, but for grease y'all wasting your money.

https://www.ruralking.com/mystik-jt6-high-temperature-multi-purpose-grease-14-oz-10001200

This is better than their HD green. Prove me wrong!

I use JT6 on everything I own. Trailers, car drive shaft universals, mower deck spindles and loaders/backhoe. My 4Runner has 250K miles and no play in the driveline and my mower deck is at 20 years and 1000 hrs with no issues either. I've never had a trailer axle fail yet either, although I do very little trailering with either my equipment or horse trailer.

 

[jyoutz]

I like Lucas products, but for grease y'all wasting your money.

https://www.ruralking.com/mystik-jt6-high-temperature-multi-purpose-grease-14-oz-10001200

This is better than their HD green. Prove me wrong!

No Rural King stores in the west.

 

[hiddentacocatneddih]

The bigger problem people have is not greasing.

Just buy the cheap stuff and keep it greased. Most our equipment isnt that high performance

 

[jyoutz]

I think most trailer hub manufacturers recommend the red lithium complex, but maybe I'm mistaken.

Read the link for the product sheet that I posted. The polyurea outperforms lithium grease in all categories.

 

[hiddentacocatneddih]

Read the link for the product sheet that I posted. The polyurea outperforms lithium grease in all categories.

For someone who uses a trailer professionally/daily sure

Most hobby guys use it what, few times a year? Just give it a shot or 2 of grease before use and roll with it