I suppose that is true.  For the average person, changing the oil is  a simple precaution, easily accomplished.  Sort of like taking a bath before you stink rather than waiting for results and then analyzing the data in order to decide if the stink is strong enough to warrant bathing.

But since you enjoy doing it that way, I encourage it (regarding the oil testing).  For me, that is more trouble than it is worth.

mcneely

---- Craig Cowan <phishman068@GMAIL.COM> wrote:
> It's more economical as it tells me something. Just changing your oil is like conducting a long term experiment and throwing away the results.
> My interval is whenever I feel like it, and will be more often as it wears.
>
> -craig
>
> On Dec 7, 2012, at 11:05 AM, Alistair Bell <albell@SHAW.CA> wrote:
>
> > So you send out you van out for testing on a schedule? And that is more economical than changing your oil?
> >
> > Alistair
> >
> >
> >
> > On 2012-12-07, at 4:16 AM, phishman068@gmail.com wrote:
> >
> >> Hmm....
> >> I guess you guys don't believe in or have experience with oil testing?
> >> Perhaps you didn't notice that piece of info where I said I have had the oil tested and its been passing?
> >>
> >> I no longer believe in service intervals assigned to the masses when testing and good science can prove the exact conditions on an individual basis.
> >>
> >> One of the marine Diesel engines on a boat I run has 26gallons of expensive and specialized oil. We do not change it because "it's time", we change it because tests tell us it's time. The same can apply to a vehicle, an oil change just doesn't cost thousands of dollars in the case of the Zetec.
> >>
> >> I'm not throwing away good oil, and so far I've proven in my application the service interval is infact a great deal higher than what's "suggested".
> >>
> >> -craig
> >

--
David McNeely