Marvel Mystery Oil in the oil helps to un-gum old engines. It can un-stick rings and clean away carbon from around the rings, and clean lots of carbon and sludge from around the whole engine. The down side is that if the engine is really crusty, it can free so much stuff that it can clog the oil pump pickup.
Will the oil pan come off the engine inside those trucks, or is the cross member in the way?
Will the oil pan come off the engine inside those trucks, or is the cross member in the way?
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