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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 03-13-2006, 10:36 PM   #1
miktrebla09
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How dark should the oil be on the dipstick after an oilchange?

Hey guys,
Just got my car back from inspection 1. I checked the oil level (which, by the way, was over the top notch..this is bad, right?) and noticed that my oil was really dark. Not as dark as it was before the oilchange, but definitely far from the way brand new castrol oil looks.

Does anyone know if the oil on the dipstick should be this way after an oil change?

Thanks!
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Old 03-13-2006, 10:38 PM   #2
chmura
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You should definitely change your oil.

I change my oil every 3k with synthetic. I'm anal about my car. I dont want the oil to become charcoal black.
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Old 03-13-2006, 10:42 PM   #3
miktrebla09
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Thanks for the reply, but I just had my oil changed by my dealer, and was wondering if the slightly brown color (on the dipstick) is normal after an oil change.
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Old 03-13-2006, 10:49 PM   #4
chmura
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Quote:
Originally Posted by miktrebla09
Thanks for the reply, but I just had my oil changed by my dealer, and was wondering if the slightly brown color (on the dipstick) is normal after an oil change.
Some oil brands are darker then one another.

Castrol Synthetic is darker then Mobil 1 when NEW.

Do you know what brand of oil the dealer put in?? Did they change the filter??

Honestly I dont trust the dealer. Never went in to change my oil there. Even the free oil changes I never got done and did them myself. My dad owns his own bmw/mercedes repair shop and there are countless amounts of customers that come in my dads shop that complain about the dealer. Many of them come in with the dealer invoice of whatever they changed and in all honesty the dealer hasnt changed anything. Lots of scams the dealer can pull.
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Old 03-13-2006, 10:51 PM   #5
Mahjik
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The oil will be a little darker than what was in the oil container once the oil cycles around a bit inside the engine. The old oil is never "completely" gone and there is still dirt and sludge left in the engine. A darker color oil shows that it's doing it's job (i.e. removing grud from the engine itself).

Just a little info:

Quote:
Myth #2

If the oil turns dark or black quickly, it's no good.
You can tell the condition of oil by the look, smell or color of it.
Dirty (black) motor oil means the oil is breaking down.

Fact
A common misconception is that high quality motor oil should come out of an engine looking clean at the time of an oil change. Nothing could be further from the truth. If the oil is doing its job of cleaning the engine, then it should be dirty when it is drained. Motor oil will start looking dirty a short time after it is put to use. In the case of diesel engines, the oil will look dirty within a few hours of operation. These are signs that the motor oil is doing its job of keeping soot, dirt, and other combustion contaminants in suspension to be carried to the filter or removed from the crankcase when the oil is changed.
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Old 03-13-2006, 10:57 PM   #6
miktrebla09
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Quote:
Originally Posted by gsrthomas
Some oil brands are darker then one another.

Castrol Synthetic is darker then Mobil 1 when NEW.

Do you know what brand of oil the dealer put in?? Did they change the filter??

Honestly I dont trust the dealer. Never went in to change my oil there. Even the free oil changes I never got done and did them myself. My dad owns his own bmw/mercedes repair shop and there are countless amounts of customers that come in my dads shop that complain about the dealer. Many of them come in with the dealer invoice of whatever they changed and in all honesty the dealer hasnt changed anything. Lots of scams the dealer can pull.
Thanks again for the input, fellas. They used the OE spec oil (castrol 10w-60) for S54 M3s. I compared the oil from the container, which was a transparent golden-honey color, to the oil in my dipstick and found a huge difference in color.

thanks for hte info, Mahjik. I understand that there's residual spent oil remaining in the engine, but the oil seems a bit too dark to be attributed to taht. I'll snap a photo of it and show you guys.

thanks again.
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