[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Thick Oil

> >	I just got back my second oil analysis from the Quattro.  I had 
> >been using Pennzoil 10/30 synthetic, and all levels were within normal 
> >wear rates.  Further, I thought it was interesting, that the viscosity 
> >came out to 35!  So what I had was actually 10?w35.  I've had oil thin 
> >out before when I was running the fuel injection too rich (on the RX7 - 
> >user programmable - lots o' fun)but have never seen thicker oil.
> >
> >	I really don't know enough about it to interpret all the wear 
> >rates, but the company that does it for me will tell me if they see 
> >something abnormal, I hope.  :-)
> >
> >Graydon D. Stuckey								
 
> I think it's very common for used oil to go up in viscosity - so long as
> fool dilution is minimal.
> - -glen

That's right, Glen.  Part of oil wear is evaporation of the more 
volatile "parts" due to heat and wear.  Provided that no fuel or 
other thinning contaminants enter, it is normal for viscosity to 
change slightly - and thickening is logical.


(You knew the next comment was coming...)
NOTE: one advantage of synthetics is that they are much less prone to 
viscosity change, because the volatile "parts" (tempted to say 
"elements" but I might get a BZZZZZZZZT from Bob Myers, so I'll stay 
with generic "parts") do NOT volatize as easily.  I'm sure this is 
common to most synthetics, but I have seen very specific tests and 
literature from Amsoil about its performance in this respect.  It 
blows conventional oil into the weeds in this respect!  
Yet another way that synthetics are superior to dino-jooce.....



*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

Al Powell                           Voice:  409/845-2807
Ag Communications                   Fax:    409/862-1202
107 Reed McDonald Bldg.             Email:  a-powell1@tamu.edu 
College Station, TX  77843-2112
W3 page - http://agcomwww.tamu.edu/agcom/rpe/alpage.htm

                    ***The PACK is back!***
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***