<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I have used Redline MT-90 in both 100M's and BJ8 transmissions for 8 - 10 years now exclusively.<div class=""><br class=""></div><div class="">6 trips across the USA and Canada, 80,000+ miles. Another one in September.<br class=""><div class=""><br class=""></div><div class="">No issues at all. Nice smooth shifting. MTL is thinner and tends to leak more out of the 100’s tranny.</div><div class=""><br class=""></div><div class="">Highly recommend. </div><div class=""><br class=""></div><div class="">Randy</div><div class=""><br class=""><div class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 13px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><div style="font-family: Helvetica;" class="">Randy Hicks<br class=""><a href="http://www.austinhealey100m.com" class="">www.austinhealey100m.com</a><br class="">'56 100 M White/Black<br class="">'56 100 M Florida Green/OEW<br class="">'65 BJ8<br class="">'53 MGTD</div><div style="font-family: Helvetica;" class="">'77 450 SL<br class=""><a href="mailto:Healey100M@me.com" class="">Healey100M@me.com</a></div></span></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></span></div></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
</div>
<br class=""><div><blockquote type="cite" class=""><div class="">On Aug 9, 2017, at 7:44 AM, Charlie Baldwin <<a href="mailto:mgcharlie@comcast.net" class="">mgcharlie@comcast.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252" class="">
<div text="#000000" bgcolor="#FFFFFF" class=""><p class="">Mike,</p><p class="">You have probably stepped in it by getting an oil discussion
started again. <br class="">
</p><p class="">But to answer your question without adding my opinion to it, I
believe that when someone on the list contacted Red Line, they
recommended MT-90, which from memory is 40 wt. Check Red Line's
website: <a class="moz-txt-link-freetext" href="https://www.redlineoil.com/Products.aspx?pcid=7">https://www.redlineoil.com/Products.aspx?pcid=7</a></p><p class="">They make a good argument for using a gear rated oil in a
transmission as Harold also outlines below. As he mentions and we
have discussed previously, it seems that the synthetic
transmission oils do leak a bit more.</p><p class="">Charlie<br class="">
</p>
<br class="">
<div class="moz-cite-prefix">On 8/8/2017 11:24 PM, Harold Manifold
wrote:<br class="">
</div>
<blockquote type="cite" cite="mid:C0B0D3204F1A4357ADD0F375C93DFADF@AllInOne" class="">
<meta content="text/html; charset=windows-1252" http-equiv="Content-Type" class="">
<meta name="GENERATOR" content="MSHTML 11.00.10570.1001" class="">
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">Mike,</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">I am new to the Healey
world but I am an engineer with an automotive background who
recently had a BN4 transmission with an overdrive completely
rebuilt. I could not find a consistent answer on the
recommended oil for the transmission. The original Healey
manuals are not consistent either, the shop manual
recommends 20W50 and the Healey service bulletins from the
day recommend 30W. Coming up with the right oil is further
complicated by the design of a Healey transmission which is
two different transmissions with a common oil system. One
transmission is a traditional gear type with syncro rings
that are not compatible with the additives in modern gear
lubricants and the other is a hydraulic pump. I am sure
there will be much disagreement but these are the steps I
went through to select the oil I would use:</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">1. The additives had
to be compatible with brass and other soft metals used in
older transmissions.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">2. The oil should be
designed to work with gears and have some level of EP
protection. Note very few engine oils meet gear oil
specifications.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">3. The oil should have
a viscosity similar 30W engine oil which was recommended in
an Austin Service bulletin in 1960 replacing 20W50.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">The oil that best fits
all of these requirements is a 70W-90 GL4 gear oil. Red Line
MT-90 meets this specification as does Pennzoil Synthetic
70W-90 GL4. I picked the Pennzoil as it costs less than the
Red Line but both should work well. Do not use a GL5 as the
additives are not compatible with brass. I looked into why
Austin switched their recommended oil from 20W50 to 30W and
concluded it was for a lower viscosity at lower temperatures
i.e. when the transmission is cold. Viscosity is another
important consideration. 70W-90 GL4 has the same viscosity
as 30W engine oil above 35 degrees C and a better low
temperature viscosity. The only downside I have seen with
Pennzoil Synthetic 70W-90 GL4 is that it can get through
even the smallest openings and cracks and the transmission
may leak a little more but that is evidence the oil is
getting every where it should. I have heard Red Line MT-90
doesn't leak as much as the Pennzoil.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">For those that may
doubt the viscosity claims please note that engine oils and
gears oils are classified differently and should be compared
by looking at the numbers on the can. See the attached
viscosity curve.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">I trust this helps but
I want to emphasize this is the oil I use and I recommend
you reach your own conclusion.</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"><font size="2" face="Arial" color="#0000ff" class="">Harold</font></span></div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<div dir="ltr" align="left" class=""><span class="343023002-09082017"></span> </div>
<br class="">
<div class="OutlookMessageHeader" dir="ltr" align="left" lang="en-us">
<hr tabindex="-1" class="">
<font size="2" face="Tahoma" class=""><b class="">From:</b> Healeys
[<a class="moz-txt-link-freetext" href="mailto:healeys-bounces@autox.team.net">mailto:healeys-bounces@autox.team.net</a>] <b class="">On Behalf Of </b>Michael
MacLean<br class="">
<b class="">Sent:</b> Tuesday, August 08, 2017 5:47 PM<br class="">
<b class="">To:</b> Healey List<br class="">
<b class="">Subject:</b> [Healeys] Russ Thompson<br class="">
</font><br class="">
</div>
<div style="font-size: 16px; font-family: 'times new roman', 'new york', times, serif; background-color: rgb(255, 255, 255);" class="">
<div id="yui_3_16_0_ym19_1_1502237499620_134651" dir="ltr" class="">
Through a reference from the list I am having Russ Thompson in
Northridge, California rebuild my BN2 transmission. It is a
low mileage (10,000 mi. approx) transmission, but I wanted to
be able to put it in and not have to take it back out again.
Good thing I took this precaution. Russ found the overdrive
stuck and would never have worked. Today he showed me the
accumulator piston. The smaller center piston was scored from
dirt or crap in the oil. Russ replaced it with a one piece
piston from a Triumph overdrive. There was a huge spring
below it. Anyone heard of this? He said engagement will be
real positive now. Even with the low mileage, the number 2
synchro was toast and will be replaced. The other two were
fine and will be re-used. All the gears showed very little
sign of wear. The reverse gear had some surface rust on the
teeth, but that can be blasted and it will be fine. Getting
closer to having the drive train is the car.</div>
<div id="yui_3_16_0_ym19_1_1502237499620_134884" dir="ltr" class="">
I know I am going to start a discussion, but Russ recommends
using 40wt motor oil for the transmission. Anyone know what
weight Redline MTL is?<br class="">
</div>
<div id="yui_3_16_0_ym19_1_1502237499620_134867" dir="ltr" class="">Mike
MacLean<br class="">
</div>
</div>
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