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Old 06-26-2020, 01:44 PM   #16 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,092

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Quote:
Originally Posted by Piotrsko View Post
... If it gets discolored you are exchanging consumption for contamination.
In other words, piston ring blowby into oil in the crankcase instead of valve stem seal leakage of oil into the combustion chamber when the car is off, yes? I guess a leaking head gasket could also allow high pressure combustion gasses into the oil passages, too. But the oil would not likely be high pressure enough to cross through the head gasket into the combustion chamber, would it?
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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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