Miata Mailing List: October 1994, Message #158
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   From: "Ken Stoorza" 
Subject: Re: special oil filter wren
   Date: Mon, 10 Oct 1994 18:40:28 -0400

Isn't "drain oil when hot" sort of SOP for auto engines?

Ken Stoorza
White '90B


On Oct 10,  6:24pm,  wrote:
> Subject: Re: special oil filter wren
> Bob,
>
> On 10 Oct 1994, you wrote:
>
> > I always thought that it was better to get the engine *real* hot
> > before draining the oil, so that more of the impurities would
> > be solubilized and removed in the hot oil, rather than precipitating
> > out in the cooled oil (and staying in the engine).  Have I been
> > burning my hands for nothing all these years? 
>
> I'm not enough of a chemist to know if your approach is valid.  It very
> well could be.  I'll have to ask one of my Materials Engineers what he
> thinks about this.
> Later,
> Tom
>
>-- End of excerpt from