<div dir="ltr">I also have run 20-50 Castrol in both my BJ7 and MK1 Sprite. Never an issue. But, I have often wondered about the synthetic question. Can I in fact change over to that, and if so, what would the pros/cons be?</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Mar 20, 2022 at 4:57 PM Bob Spidell <<a href="mailto:bspidell@comcast.net">bspidell@comcast.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
I've run 20W-50 in both my Healeys--BN2 and BJ8--for years (35+ for
the BJ8). Note some owners swear by Penrite, which has a 60-rated
oil (don't know what the winter value is). <br>
<br>
The only real 'risk' would be a cold start at freezing or lower
temps, which could conceivably result in a bit more top end--and
starter--wear.<br>
<br>
bs<br>
<br>
<br>
<div>On 3/20/2022 2:14 PM, Henry G Leach via
Healeys wrote:<br>
</div>
<blockquote type="cite">
Michaels-what a timely request. Just last week, I changed the oil
in my MK1 Sprite. I normally use 30W conventional oil. When I
went to the various auto stores in my town, all I could find was
synthetic or synthetic blends. By luck one of the "Grocery" stores
was selling some Castrol 20-50 regular oil in a 5qt jug for
$19.95. (closeout?) I bought it, and changed the oil and the car
road tested ran perfect and sounded great with clean oil and same
oil pressure as previous. In fear, I went back and bought the last
two remaining jugs of this elixir they had on the shelf.
<div><br>
</div>
<div>Back when these cars were introduced, multi-grades were just
starting to become available and Geoff Healey stated that
although interesting, they would still recommend 30W. I plan to
use it in the 100 and BJ8, also, as factory specified, in the
Jensen-Healey. I have had occasion to see synthetics, due to
there small molecular size, leak out of these cars whereas the
conventional oil will stay in.</div>
<div><br>
</div>
<div>I think if Geoff was still with us today, he would agree that
there is nothing wrong with multi-grades but probably not
recommend synthetics unless you could keep a diaper under your
Healey. Hank<br>
<br>
<p>-----------------------------------------</p>
From: "Michael Salter via Healeys" <u></u><br>
To: "Michael Oritt"<br>
Cc: "Austin Healey"<br>
Sent: Sunday March 20 2022 1:51:06PM<br>
Subject: Re: [Healeys] Oil grade for 100 Le Mans<br>
<br>
<div>IMHO Michael that will be absolutely no
problem.
<div><br>
</div>
<div>M</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Sun., Mar. 20, 2022,
4:45 p.m.
Michael Oritt via Healeys, <<a>healeys@autox.team.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div class="gmail_default" style="color:rgb(51,51,255)">Through
a stupid
mistake on my part today I purchased eight quarts of
20w50
synthetic Amsoil rather than the 10w40 I normally use
year-round. Unfortunately I discovered this mistake
this
afternoon only after I completed the oil/filter
change.</div>
<div class="gmail_default" style="color:rgb(51,51,255)"><br>
</div>
<div class="gmail_default" style="color:rgb(51,51,255)">I am
concerned
that this higher-viscosity oil might in some way
damage my
engine. It has been about 60-70K miles from
the engine's
having been professionally rebuilt and while oil
pressure has
fallen somewhat over the last several years the
gauge still indicates about 40 psi at 2500-3K rpm's
and
about 20 psi at fast idle with 10w40, in both cases
with hot
oil and at normal engine operating temperature. I
took the
car for a very short spin after completing the change
and I am
quite sure I did not did not get the oil up to full
operating
temperatures but in any case the OP did seem a few psi
higher than
what I am used to seeing</div>
<div class="gmail_default" style="color:rgb(51,51,255)"><br>
</div>
<div class="gmail_default" style="color:rgb(51,51,255)">At
this point I
have about $125.00 invested in the mistake: seven
quarts and
a new K&N filter. If my fear is verified by your
opinions
I am certainly willing to drain and refill--I
certainly do not want
to be driving around if there is a real risk of
causing
damage. </div>
<div class="gmail_default" style="color:rgb(51,51,255)"><br>
</div>
<div class="gmail_default" style="color:rgb(51,51,255)">I
eagerly await
the group wisdom.</div>
<div class="gmail_default" style="color:rgb(51,51,255)"><br>
</div>
<div class="gmail_default" style="color:rgb(51,51,255)">Best--Michael
Oritt</div>
<div class="gmail_default" style="color:rgb(51,51,255)"><br>
</div>
</div>
<br>
</blockquote>
</div>
<u></u></div>
</blockquote>
<br>
</div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><p style="font-size:12.8px"><span style="font-size:10pt;color:navy">Jim Ryan<u></u><u></u></span></p><p style="font-size:12.8px">©¿©¬</p></div></div>