PlayDoh wrote:

>         I have an 84 gl, gas engine vehicle, I had a sticky valve which I've
> quieted somewhat with marvel mystery oil, seems to be the only additive
> that keeps it from stickin. But that's not the problem (i don't think
> anyway). When warm, as I come to a stop, the engine seems to idle too low,
> causing a flickering (sometimes on full) oil light. A light step on the gas
> stops the flickering, but I am wondering it there is something internal
> causing the light... I have thought about turning the idle up slightly, but
> am unsure if that is a wise 'solution' to the problem... Oil is fine, about
> a 1/4 inch below the top notch on the stick, and changed religiously every
> 2 months (a little excessive, but I love my van) I'm runnin 10w30 at the
> moment, 3 quarts of oil, 1 pint marvel. I'm just wondering if the idle down
> at stop is a symptom of something deeper. is it safe to ignore this
> flickering light, and turn the idle up a bit???
>
> Play-

More viscosity!
  If 20W50 seems excessive to you, at least try 15W40.  Not all FLAPS have it,
but it's getting easier to find.  Rotella-T from Shell is one example.

Mobil 1 synthetic seems to have finally quieted my sticking lifter.  Can't be
certain since its only been about a month.  Rather expensive to use it on your
oil change schedule.

Larry A.