Originally posted by shotwell:
That 5W-20 garbage Ford is pushing is too thin to protect anything at even normal operating temperature.
the thinner oil has less resistance to flow and untimately reduces fuel consumption. A common misconception is that thin oils have low film strength when in-fact that is not true. Formulation of the oil is mainly what determines the film strength.
When you install a new seal or install a DMD not only should you apply oil to the seal but also to the sealing surface of the damper.
When installing the DMD or the stock crankshaft damper or under drive pulley the keyway must be sealed as well with oil resistant silicone (carefully select your silicone sealant, some are only rated for intermittent exposure to oil, you need one that is rated for continous exposure to oil, usually the balck and blue colored silicones are oil resistant)If not sealed oil will seep out through the space between the key and the keyway slot.
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