Thanks for these. I do think I likely need to redo the valve seals or the piston rings because the car loses about a quart of oil every 3000-4000 miles. Some of that is leaking out, but I am willing to bet that after 266,000 miles, some is getting burned. Seals and rings have never been replaced.
But here is the thing... the CAT dtc has not returned since a few weeks ago. And it showed up after about 60 miles continuous (some P&G) driving. If oil is the culprit it would have to have been leaking pretty bad and given the conditions of the failure, it would probably have recurred sooner, rather than later, no?
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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