I work on small equipment all the time, and a few years ago I started using 2 cycle synthetic chain saw lube for all the smaller bushings and bearings. It seems to not dry out as fast, and also doesn't make as much black deposit on the bushing. Works for me!

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Richard Wooldridge
'01 ML320
'82 300D 4.3L V6/T700R4 conversion
'82 380SL, '86 560SL engine/trans. installed
'79 450SL, digital servo update
'75 280C