Join Date: Nov 2009
Location: Baker River Valley, NH
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Grease compatibility is an issue because of what can happen when two incompatible greases are introduced to each other. This is important to consider when refilling a reservoir that already contains grease.
Lubrication grease is a mixture of oil and soap or another thickener. The portion of the grease that determines the compatibility is the thickener.
Lithium complex is the thickener that is most compatible with other thickeners. There are only a few other thickeners that are not compatible with lithium complex.
Moly based greases are good for ball joints, U-joints, and wheel bearings.
I use Polyurea based greases in CV joints and my mower spindles.
Polyurea will clump when introduced to Lithium or Moly greases.
2009 Impala SS
"Speed never killed anyone. Suddenly becoming stationary... that's what gets you." Jeremy Clarkson