Car Talk - Non S2000 General Motoring and Non S2000 Car Talk

When does oil turn black?

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Old Oct 19, 2006 | 12:09 PM
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Default When does oil turn black?

Always wondered this, just been out to check my oil as did 1200 miles last weekend. After 3 months it still doesn't need any and its still clear

My Honda needed oil every month and it was always black so what am I doing wrong. Not redlining it enough ?
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Old Oct 19, 2006 | 12:14 PM
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I think it's through getting burnt in extremities of the engine, then gets back into the main "body" of oil, contaminating it.

I've never had anything but clear oil in my S though and I certainly redline it a fair bit. Usually needs a top up once a month too.

Maybe it's just down to the physical layout of the engine making it more likely or not
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Old Oct 19, 2006 | 12:18 PM
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Originally Posted by JamieS2K,Oct 19 2006, 08:09 PM
Always wondered this, just been out to check my oil as did 1200 miles last weekend. After 3 months it still doesn't need any and its still clear

My Honda needed oil every month and it was always black so what am I doing wrong. Not redlining it enough ?
you have water in it

blown head gasket probably
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Old Oct 19, 2006 | 12:19 PM
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Originally Posted by gaddafi,Oct 19 2006, 08:18 PM
you have water in it

blown head gasket probably


Or spunk from where you have been wanking off in the engine bay
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Old Oct 19, 2006 | 12:20 PM
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Originally Posted by gaddafi,Oct 19 2006, 09:18 PM
you have water in it

blown head gasket probably




Did you mean completely clear Jamie?
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Old Oct 19, 2006 | 12:23 PM
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Originally Posted by gaddafi,Oct 19 2006, 08:18 PM
you have water in it

blown head gasket probably
muppet clear as in straight out of the bottle clear
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Old Oct 19, 2006 | 12:24 PM
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Originally Posted by gaddafi,Oct 19 2006, 08:18 PM
you have water in it

blown head gasket probably
blown head gasket leave a white residue round oil cap mate, thought you may have known that being a pistonhead
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Old Oct 19, 2006 | 12:29 PM
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the other possibility is that whoever sold it to you wanted to cover up as many traces of an engine rebuild as possible

the easiest way to do this is to flush the engine several times using special oil before refilling

an unmolested, original engine will usually contain darker oil because some older oil inevitably remains in every oil change

so I would be slightly concerned and definitely do some checking

or it could just be spunk, in which case you can relax

apart from concerns over your eyesight
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Old Oct 19, 2006 | 12:36 PM
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Originally Posted by gaddafi,Oct 19 2006, 08:29 PM
the other possibility is that whoever sold it to you wanted to cover up as many traces of an engine rebuild as possible

the easiest way to do this is to flush the engine several times using special oil before refilling

an unmolested, original engine will usually contain darker oil because some older oil inevitably remains in every oil change

so I would be slightly concerned and definitely do some checking

or it could just be spunk, in which case you can relax

apart from concerns over your eyesight
you are so full of sh1t its unreal
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Old Oct 19, 2006 | 12:40 PM
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Originally Posted by gaddafi,Oct 19 2006, 08:29 PM
or it could just be spunk, in which case you can relax
If I was you I would see a doctor if yours is clear
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