Is calcium sulfonate grease OK for poly bushings?

Joined
Dec 30, 2015
Messages
3
Location
Southern California
Amsoil Synthetic Water-Resistant Grease - a calcium sulfonate complex grease. Amsoil product code GWRCR. NLGI #2 GC-LB.

Would there be any potential problem using this on polyurethane bushings in automotive suspension applications?

Yes, I did several searches but couldn't find this answer - hope I'm not rehashing an old subject.

Thanks!
 
Joined
Dec 26, 2005
Messages
23,003
Location
Upper Midwest
I'd suggest asking Amsoil, they should be able to give you a technically correct answer. Having said that though I can't imagine the lubricant being a problem for polyurethane.
 
Joined
Oct 25, 2017
Messages
334
Location
A Highway Near You
Had an issue with calcium grease many, many years back swelling poly bushings in trailer brake S-cams causing the brakes to release slow and drag. I don't think it was widespread, the end result answer we got was it was a specific to the particular poly formula in the bushings. We switched back to lithium based grease and problem went away.
 
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