[Healeys] OH NO!, Not OIL again!

Robert Blair rnbmail at yahoo.com
Mon Jan 4 09:08:59 MST 2010


Yes - but its not just about viscosity.  It is also about metalurgy/materials
and design tolerences that are quite different between modern engines and the
lump.

Robert N. Blair  Yellow 65BJ8  rnbmail at yahoo.com
   



--- On Mon, 1/4/10, Oudesluys <coudesluijs at chello.nl> wrote:

> From: Oudesluys <coudesluijs at chello.nl>
> Subject: Re: [Healeys] OH NO!, Not OIL again!
> To: "WILLIAM B LAWRENCE" <ynotink at msn.com>
> Cc: healeys at autox.team.net
> Date: Monday, January 4, 2010, 12:53 AM
> I cannot see any reason why this oil
> will not be suitable. The SG/SH specs are OK as is the
> viscosity. They claim better high temperature resistance
> than car oils as the oil is intended for hotter running air
> cooled and high revving motorcycles, so the oil pressure
> should keep up a bit better when very hot on a long stretch
> of autobahn with 100mph plus.
> If it can take the conditions in a highly tuned motor cycle
> engine it can easily take the conditions in an old low
> stressed unit like the Austin engine which will take any
> 20W50 oil you throw at it.
> Kees Oudesluijs
> NL
>
>
> WILLIAM B LAWRENCE schreef:
> > At the risk of causing wails of despair and anger I am
> writing on this topic,
> > which I recognize has been beaten to death and should
> probably be allowed to
> > rest in peace. However, being a little behind the
> curve I have a question for
> > any of our oil gurus who may not yet have escaped to a
> higher plane of
> > enlightenment:
> > I was walking through my local Pep Boys today, looking
> for some of the Rotella
> > SAE 40 I have been using because it is rated at SL on
> the API scale, when I
> > happened to see a display of Castrol 4T (4 cycle)
> motorcycle oil in 10W-40 and
> > 20W-50 and rated at SG/SH. It is priced at $15.99 per
> 4 liter bottle (less
> > than $4.00 per quart).
> > My question: Is there any reason this oil can't be
> used in an LBC engine? I'm
> > trying to think of any reason that such an oil, which
> is formulated for the
> > higher demands of small, high capacity, high revving
> engines would be
> > detrimental to the life of my old lightly loaded 2660
> cc lump. Any comments
> > will be appreciated (well almost any...)
> > Bill Lawrence
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