Join Date: Apr 2006
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Re: Water in oil
Generally not a good idea to supply pressurized water into an engine, because it can back up in the exhaust, flood the cylinders, hydrolock them and cause damage as well as rust the cylinder walls and slip past the rings and into your oil.
Water in the oil could be a corroded cooling passage but most likely is a blown head gasket. Compression testing, etc. may be able to find that.