I'm a Rotella fella too - Shell Rotella T 15W40 is my engine oil of choice.
I've been using it for, well, for a reeally long time!   Castrol RT 15W40
truck oil is my backup plan

On Mon, Jan 11, 2010 at 3:32 PM, Al Knoll <anasasi@gmail.com> wrote:

> Slippery business this.  Some time ago, for the greater good, Oil MFGR's
> had
> to stop putting zinc compounds into their automobile oil.  lGeegling around
> for zinc in motor oil will get you a wealth of opinon and fact.
>
> Ed Hackett formerly of Desert Research Institute put together an
> informative
> bit here:
> http://micapeak.com/info/oiled.html.
>
> Pensionerd.  (Rotella-fella)
>
> On Mon, Jan 11, 2010 at 3:14 PM, Dave Mcneely <mcneely4@cox.net> wrote:
>
> > I use Castrol 20W50, petroleum based (nonsynthetic).  I change the oil
> > every 3000 miles, just as I always have for all my vehicles.  I can't
> > imagine how synthetic could improve on that.  I notice that most
> > manufacturers specify that oil should be changed at the recommended
> > interval, and that less often than that voids the warranty, whether the
> oil
> > used is synthetic or not.  David McNeely
> >
> >
> >
> > On Mon, Jan 11, 2010 at 1:46 PM, Stephen Cebula wrote:
> >
> > What motor oils you you all use out there?  A friend of mine keeps
> pushing
> >> synthetic oil.  He's a Ford man, and not familiar with Vanagons.  What's
> the
> >> rap on that?
> >> Steve
> >>
> >
>

--
Jake

1984 Vanagon GL
1986 Westy Weekender "Dixie"

Crescent Beach, BC

www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27