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Discussion Starter #1
Pulled the 400 out just to replace leaky gaskets and seals.

Take a look at what I found in the oil pan.



-Norm
 

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64-67 Expert
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I've never seen that in any of my Pontiacs in the past 35 years. What engine oil are you running and what are your change intervals? When I tore down my '67 GTO at 173,000 miles, my pan had no sludge at all in it. Ditto other Pontiacs I've owned. I always used Valvoline back then, switched to Kendall, then to Rotella about 10 years ago. Newer Pennzoil is not paraffin based like the ancient stuff, so it shouldn't be a problem, though.
 

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Discussion Starter #4
Bought her last summer, put a fresh change of Pennzoil in and drove about 1500 miles. It had to be from the prior owner neglecting her, poor girl.

-Norm
 
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