John Deere 544d wheel loader. Operator says the machine uses or loses 2 gallons of motor oil per day. There is oil every where in the engine compartment but it appears to be wet oil leaking between the block and the cylinder head. The radiator looks at least 50% clogged and the fan shroud is broken but the operator says the machine does not over heat. Blown head gasket due to previous overheat? If so is it necessary to have the head checked by a machine shop. I do not know the hour meter reading either
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