I guess in theory. I've seen a lot of sludged up
engines that ran detergent oil too. The problem with
sludge is more lack of oil change and harsh operating
conditions imho. I tend to change oil every 3K miles
or 1 year and have never had a problem. Doesn't mean
there would not be one if you drove with 50W
non-detergent for years. Remember, I do this when the
alternative is a near term engine rebuild. Any extra
life and driving I get as a consequence if free miles.
Kerry
--- DR CHALLENGER <drchallenger@xxxxxxxxxxx> wrote:
> won;t a non detergent oil result in sludge in the
> motor?
>
>
> >From: KerryPinkerton <pinkertonk@xxxxxxxxx>
> >>Ok, We need a test case. I hear and understand
> what
> >D2 is saying and actually agree with his words.
> I;m
> >struggling with the difference between the theory
> that
> >D2 correctly describes and what I perceive to be
> the
> >real world.
> >
> >In my experience, if you have a car that smokes A
> >LITTLE, especially at startup, then running
> Vavoline
> >40 or even 50W racing oil (non detergent) will
> greatly
> >reduce the smoking AND increase oil pressure. The
> >downside is that when it is VERY COLD (40 or less)
> it
> >seems a little harder to crank and oil pressure
> does
> >not pop up quite as fast but still pops right up.
> >What works for me may be because I have rather
> sedate
> >driving habits but based on what D2 said, my
> solution
> >would actually be better for hard driving except
> >possibly for a few seconds at startup. After all,
> >it's RACING oil.
> >
> >A car which smokes probably has extra clearance in
> the
> >journals and the heavier oil seems to take up some
> of
> >the slack hence higher oil pressure. Yep the heavy
> >oil can get SLOOW when cold but my thinking is that
> it
> >will also stay in place on the journals while the
> >pressure is coming up. Anyway, in 37 years of
> messing
> >with old cars, this has worked for me and saved me
> >several rebuilds because I won't drive a smoking
> car.
> > I've never had an engine seize or develop a
> knock.
> >If it doesn't smoke, has decent oil pressure, and
> has
> >not other mechanical problems, I'm perfectly
> content
> >to let my money get smaller in the stock market
> rather
> >than building an engine. However, this is MY
> OPINION,
> >what we need is a test of sorts.
> >
> >I'm willing to make this offer to ONE person. If
> >someone has a car that smokes a little (enough to
> be
> >noticable and be able to tell if it smokes less
> after
> >the test), is due for an oil change, and normally
> runs
> >a multigrade detergent oil change it and put in
> >Vavoline 40 or 50W racing oil (Autozone, walmart,
> >advance, etc). The racing just means non
> detergent.
> >IF it does not, IN YOUR OPINION, reduce smoking,
> I'll
> >pay for the oil and filter and you can change it
> back
> >to whatever you want. This does not include labor
> so
> >I guess I'm looking for a do-it-yourselfer.
> >
> >This will be first come only to the FIRST person
> who
> >emails me privately. When I get a volunteer, I'll
> >post who it is and we'll await the results.
> >
> >Kerryp
> >
>
>
>
_________________________________________________________________
> Join the world’s largest e-mail service with MSN
> Hotmail.
> http://www.hotmail.com
>
>
>
Back to the Home of the Forward Look Network