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Location:
South Australia
Registered:
July 2002
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Why replacing oil and filter is good
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Mon, 17 May 2004 06:11
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Well, this is actually a question, but first is a demonstration of why you should replace the oil and the oil filter as per the toyota servicing schedule...unless you too want piston rings that are so full of carbon deposits that they are seized in allowing the engine to burn more oil than the Iraqi military fleeing the UN.
click for larger image
And now for the second image I have a question. Is the discolouration (it's slightly goldish looking) simply a result of the oil getting cooked by combustion gasses? Possibly the result of old oil and the fact that the car that this came from was burnt to the ground?
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Location:
Epping, Sydney
Registered:
April 2003
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Re: Why replacing oil and filter is good
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Mon, 17 May 2004 06:40
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when oil burns it does that funny goldish colour thing to some metals from what I have seen
dipsticks go that way too...
ALWAYS CHANGE YOUR OIL! 
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Location:
South Australia
Registered:
July 2002
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Re: Why replacing oil and filter is good
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Mon, 17 May 2004 06:48
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Yep - always change oil!!! Luckily this is out of a wrecked car (I would never let this happen to my car!) and hence I don't have to claim responsibility for this.
You can see that those rings (ALL THREE OF THEM) are completely stuck in and wouldn't seal for shit. Only about 4 combustion rings were still floating out of the 8 in total, and none of the 4 oil rings were floating at all.
This is how engines end up blowing a tonne of blue smoke 
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Location:
Sydney
Registered:
July 2002
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Re: Why replacing oil and filter is good
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Mon, 17 May 2004 06:55
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Can it be fixed? Can you dribble something into the sparkplug hole that will take away those deposits and start the rings floating again?
Or is the only option to strip it and re-ring?
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Location:
South Australia
Registered:
July 2002
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