Quote:
Originally Posted by Chuck33079
I've never really felt ok with an oil-less turbo. So, you add grease every few thousand miles, but you never open it up and clean out the old grease - how does it not turn into a sticky gummy mess after 30k miles?
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For the industrial bearings I've worked with, the new grease pushes the old grease out the sides of the bearing (or some type of vent). In the case of a turbo, I would assume most of the grease will ooze out on the exhaust side and be sent out the tailpipe.
Based on my experience with high-temp bearings, I would give the bearing a shot or two of grease* much more often than 3000 miles. Maybe once a week for a DD.
YMMV. All my experience is with industrial equipment and not turbos.
* Just how much would depend on type of bearing, size, etc.