Oil Color

[Grant Lenahan]

Yes it does. Congratulations on having good oil. if it was clean, all 
that stuff would be gumming up your engine. Castrol uses a particularly 
high number of detergents and suspension agents.  Expensive oils in 
general use more. Synthetics, from the best brands, are the best of the 
best, and thus get susp[end the most dirt.

Grant
On Jan 23, 2006, at 9:27 PM, Dan DiBiase wrote:

> I thought this had been discussed sometime but I  searched in the 
> archives and came up empty so..... I had my 25k mile  oil and filter 
> change done (at the dealer) about 1k miles ago. I was  checking the 
> oil yesterday and noticed that it seems to be pretty dark,  almost 
> black. Up to this point I have used Mobil1 0w-40, but forgot to  buy 
> it before I went to the dealer. Their standard oil is Castrol  Syntec 
> 5w-40. I thought I had read somewhere that synthetic oil tends  to 
> darken more quickly....? Does this make any sense?
>
>   Thanks...
>
>   Dan D
>   '04 A4 1.8Tq MT-6
>   Central NJ USA
>
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