Penray’s crankcase, differential cleaner removes sludge

No one doubts the importance of regular oil and filter changes, regardless of the type of vehicle they may own or service. And more knowledgeable folks also understand the importance of regular changes of the lubricant in other driveline components like the differential. But even regular changes of lubricants and filters cannot remove deposits of sludge, gum, varnish and other contaminants that build up over time.

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Source:: http://fleetowner.com/maintenance/penray-s-crankcase-differential-cleaner-removes-sludge