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Tom Endy · 03-13-2015, 01:35 AM

I would suggest you remove the valve cover as you will likely find the same kind of sludge inside the valve chamber and in the return tube mounted on the side. This needs to be cleaned out as well. The oil appears to me to have traces of water emulsified in it. I would only run the new oil a hundred miles or less and then change it again. You may flush more sludge out and you can look for traces of water in the oil. if you do find traces of water you might want to consider replacing the head gasket

Tom Endy

03-13-2015, 01:35 AM	#4
Tom Endy Senior Member Join Date: May 2010 Location: Southern California Posts: 3,131	Re: First Oil Change in 50 years I would suggest you remove the valve cover as you will likely find the same kind of sludge inside the valve chamber and in the return tube mounted on the side. This needs to be cleaned out as well. The oil appears to me to have traces of water emulsified in it. I would only run the new oil a hundred miles or less and then change it again. You may flush more sludge out and you can look for traces of water in the oil. if you do find traces of water you might want to consider replacing the head gasket Tom Endy