Can motor oils cause sludge?
Poor quality oils can contribute to sludge. Sludge deposits are formed by a combination of dirt, soot, partially burned fuel, oxidized motor oil, leaked coolant and condensed water vapor produced during combustion. These harmful deposits are usually present, but a good motor oil keeps them separated and in suspension so they are drained with the oil and not deposited in the engine. Using a good quality motor oil and changing it at the recommended intervals, will help prevent sludge from forming in your vehicle.
