Pentosin

[Andrew Duane USG]

Hairy green toads from Mars made Mark Trank say:

> Following up on a somewhat distant thread.......I recently picked up several
> containers of synthetic Pentosin 11S from Parts Connection (on sale -- $12 a
> container!) and remembered that I'm still running the old nonsynth stuff.
> Warnings on both containers proclaim boldly (Achtung!!!) not to mix the two,
> but I seem to recall info from Scott's website that mixing the two was
> acceptable (though I recall his preference for 11S).  Do I need to flush the
> system and fill with 11S if I start to run low or can I top off/mix old with
> the new stuff?  Does it matter?    

The problem is not with mixing, it is that the new synthetic 11S
is backward compatible with all Pentosin systems, but the older 7.1
is not forward compatible with the newer systems that require the
synthetic.

So, if you have 11S, it is fine to go into anything. I started using
it in my '89 100Q which started life with the 7.1, no problem.


-- 

Andrew L. Duane (JOT-7)			duane at zk3.dec.com
Compaq Computer Corporation		(603)-884-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too psychotic to express it