<VV> hot motor oil

[Ken Clark]

Thanks for the info.  this does interest me and I hope to do some kind of test to compare them.  (dino vs synthetic)  Not sure how yet or if it will prove anything, but it does intrigue me.   Ken
 
  

> From: 62vair at gmail.com
> Date: Thu, 5 Jan 2012 20:48:09 -0800
> Subject: RE: <VV> hot motor oil
> To: kcvair at hotmail.com; patiomatt at aol.com; virtualvairs at corvair.org
> 
> Ken, take a look at the msds sheets for the oils in question. The
> corvair engine was designed for oil at a viscosity of 9.3 to 12.5 cSt
> at 100 degrees C , or 212 degrees F Per Richard widmans article. It is
> a standard test. So, look for oils in that range, but stick to the
> higher cSt end. Oils loose their ability to hold viscosity over time.
> True synthetics are less prone to this so can do a better job for
> longer change intervals.
> People have used full synthetic up to 18 cSt at 100 degrees c, however,
> which is the Mobil 1 15w50 oil. Maybe because it is more slippery? Mark
> Durham
> 
> Sent from my Windows Phone
> From: Ken Clark
> Sent: 1/5/2012 19:20
> To: Matt Nall; virtualvairs at corvair.org
> Subject: Re: <VV> hot motor oil
> 
> The Mobil 1 I used was 10w40 as all my Covair oils are and one of the
> questions was what kind of viscosity will we see when we compare a
> Mobil 1 oil vs a dino oil when the Corvair engine is at running temp.
> Has anyone ever checked to see which might be thinner when drained
> from a hot engine. By the way that engine was taken out and replace
> by the correct designated engine.
> Ken C
> 
> 
> 
> > To: virtualvairs at corvair.org
> > From: patiomatt at aol.com
> > Date: Wed, 4 Jan 2012 20:07:09 -0500
> > Subject: Re: <VV> hot motor oil
> >
> >
> >
> >
> > Since the motor oil topic came up again I have a question concerning oil when it
> > gets hot(engine running temp Corvair). A few years back I made a 1000 mi. round
> > trip to Helen Ga show. The engine did not use excessive oil, maybe a qt. in 400
> > mi. I was told Mobil 1 was the way to go, so changed to MObil 1 before the
> > trip. Used about 8 qts round trip. A Mobil(expert) tells me that the oil is
> > thin as water and runs right through the engine. My thought is that any oil is
> > thin at engine temp. Changed back to 10W40 Quaker ST. and did not have usage
> > problem. Any thoughts on this situation?
> > By the way, everyone(almost) used STP back in the 60's and did you ever take an
> > engine apart that had been using it? I've taken pans off that were covered with
> > 1/2 inch of sludge. I 'm told that was from STP and other additives. Not sure,
> > but know what I've seen.
> > Ken C
> >
> > ============================================================
> >
> >
> > Ken 400 miles per qt is excessive! Your piston rings are worn..even if no smoke is visible.
> >
> >
> > Normal is well over 1,000 miles.
> >
> >
> > Then.. saying "Mobil 1" means nothing... it's the weight /s of the oil
> >
> >
> > had you used 10w40 M1... it would /should be the same...
> >
> >
> > Regardless of what is "Best" for our engines...
> >
> >
> > When rings are worn.. thicker is better..
> >
> >
> > I remember Joe C. consuming 15 qts' from Mich. to Fla... 5w30
> >
> >
> > Told him to start adding 20w50.... only 5 qts. on the way back.. no more smoke...
> >
> >
> >
> > Matt Nall
> > Charleston, Oregon
> > http://tinyurl.com/The-Patio
> > http://tinyurl.com/Matts-Tech-Pages
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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