As I understand it, a low oil pressure can result from mechanical failures,
such as worn bearings or cases, worn oil pump ( rare), or other internal
mechanical wear.  It can also result from high oil temperatures, which may
occur independently of engine wear (for example, high speed driving (high
rpms) at very high ambient temperatures).  High rpms at high ambient
temperatures with a worn engine exacerbate the problem.  Oil break down may
contribute also, and oils that resist break down may help, if the problem
isn't due to engine wear.

A temperature gauge cannot inform you of low oil pressure.  It can only
inform you of oil temperature.  It may help you determine WHY oil pressure
is low.

mcneely

On Sun, Oct 8, 2017 at 8:27 AM, Dan N <dn92610@gmail.com> wrote:

> thanks Dennis...
>
> so given a choice for one gauge, either oil temp. or oil pressure, which
> one you recommend?
>
> what I have read the opinions are 50/50..
>
> 1. oil temp. gauge: since oil temp. and oil pressure are interrelated, a
> high oil temp can be translated to a low oil pressure...
>
> 2. oil pressure gauge: again since oil temp. and oil pressure are
> interrelated, a low oil pressure can be translated to a high oil temp...
> but a low oil pressure also means a internal failure (rod bearings, seals
> etc.) note related to oil temp...
>
> so which one is better to have?
>
> dan
>