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I use redline MT90 GL-4 in my gearbox and diff.
On Sun, Aug 6, 2023 at 10:42=E2=80=AFAM JIM UNDERWOOD via Wpta <wpta@autox.=
team.net>
wrote:
> I found that in my MGB, the OD would slip on a high RPM shift with gear
> oil. Switched to ATF and the issue was gone. I don't know how many time=
s
> I had the engine in and out thinking it was the clutch hanging up. Ran
> into the same issue on a friends 79B with OD. The TR8 gets GM syncromesh
> fluid which is a light viscosity. ATF works as well and many use that.
> Put Gear oil in a Rover 5spd and you will be grinding gears until it gets
> hot.
> Jim
>
> On 08/06/2023 8:50 AM EDT EDWARD WOODS via Wpta <wpta@autox.team.net>
> wrote:
>
>
> For all of you still using engine oil in your Triumph or MG gearboxes:
> And, by the way, when=E2=80=99s the last time it=E2=80=99s been changed? =
=E2=80=9CDirt is the
> enemy of all machinery=E2=80=9D
>
> Ed Woods
>
>
> People confuse engine oil weights with gear oil weights. They have >
> nothing to do with each other. A 75w gear oil has about the same viscosit=
y
> > {pourability} as 20w engine oil. Back in the days when your cars were n=
ew
> oil technology expecially gear oil was rather crude. 30w engine oil was
> used because they did not have a gear oil that was thin enough. Light
> weight gear oils are fairly new. The last 15 years or so. Gear oils are
> designed for shear stregnth. Meaning they cling to virtical surfaces.
> Engine oil does not. By using straight weight engine oils you are using
> ancient technology. It would be the same as putting on rayon/nylon tires,
> using poor fuel etc. We use 75w/80 gear oil in all but our racing boxes.
> These use a 75w synthetic oil. One of the boxes, a pre-war jag box had ov=
er
> 30,000 miles of rallies on it before it broke a gear tooth. There was no
> evidence of abnormal brass wear on the syncros. I have never had an oil
> engineer in 25+ years of business tell me that hypoid oil attacks brass.
> The light weight gear oils shift better and protect your gears better tha=
n
> any engine oil.
> Ralph Steinberg
>
> _______________________________________________
> wpta@autox.team.net
>
> -------------------------------------
>
> http://www.wptriumph.org
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/wpta/johnstydo@gmail.com
>
>
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">I u=
se redline MT90 GL-4 in my gearbox and diff.</div></div><br><div class=3D"g=
mail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Aug 6, 2023 at 10=
:42=E2=80=AFAM JIM UNDERWOOD via Wpta <<a href=3D"mailto:wpta@autox.team=
.net">wpta@autox.team.net</a>> wrote:<br></div><blockquote class=3D"gmai=
l_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex"><u></u>
=20
=20
=20
<div>
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;color=
:rgb(51,51,51)">
<span style=3D"font-family:helvetica;font-size:12pt">I found that in my =
MGB, the OD would slip on a high RPM shift with gear oil.=C2=A0 Switched to=
ATF and the issue was gone.=C2=A0 I don't know how many times I had th=
e engine in and out thinking it was the clutch hanging up.=C2=A0 Ran into t=
he same issue on a friends 79B with OD.=C2=A0 The TR8 gets GM syncromesh fl=
uid which is a light viscosity.=C2=A0 ATF works as well and many use that.=
=C2=A0 Put Gear oil in a Rover 5spd and you will be grinding gears until it=
gets hot.=C2=A0=C2=A0</span>
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;color=
:rgb(51,51,51)">
<span style=3D"font-family:helvetica;font-size:12pt">Jim</span>
</div>=20
<blockquote type=3D"cite">=20
<div>
On 08/06/2023 8:50 AM EDT EDWARD WOODS via Wpta <<a href=3D"mailto:w=
pta@autox.team.net" target=3D"_blank">wpta@autox.team.net</a>> wrote:
</div>=20
<div>
=C2=A0
</div>=20
<div>
=C2=A0
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
For all of you still using engine oil in your Triumph or MG gearboxes:
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
And, by the way, when=E2=80=99s the last time it=E2=80=99s been changed=
? =E2=80=9CDirt is the enemy of all machinery=E2=80=9D
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
=C2=A0
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
Ed Woods
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
=C2=A0
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
=C2=A0
</div>=20
<div style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">
People confuse engine oil weights with gear oil weights. They have >=
nothing to do with each other. A 75w gear oil has about the same viscosity=
> {pourability} as 20w engine oil. Back in the days when your cars were=
new oil technology expecially gear oil was rather crude. 30w engine oil wa=
s=C2=A0 used because they did not have a gear oil that was thin enough. Lig=
ht=C2=A0 weight gear oils are fairly new. The last 15 years or so. Gear oil=
s are designed for shear stregnth. Meaning they cling to virtical surfaces.=
Engine oil does not. By using straight weight engine oils you are using an=
cient technology. It would be the same as putting on rayon/nylon tires, usi=
ng poor fuel etc. We use 75w/80 gear oil in all but our racing boxes. These=
use a 75w synthetic oil. One of the boxes, a pre-war jag box had over 30,0=
00 miles of rallies on it before it broke a gear tooth. There was no eviden=
ce of abnormal brass wear on the syncros. I have never had an oil engineer =
in 25+ years of business tell me that hypoid oil attacks brass. The light w=
eight gear oils shift better and protect your gears better than any engine =
oil.=20
<br>Ralph Steinberg
</div>=20
</blockquote>
</div>
_______________________________________________<br>
<a href=3D"mailto:wpta@autox.team.net"; target=3D"_blank">wpta@autox.team.ne=
t</a><br>
<br>
-------------------------------------<br>
<br>
<a href=3D"http://www.wptriumph.org"; rel=3D"noreferrer" target=3D"_blank">h=
ttp://www.wptriumph.org</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/archive"; rel=3D"noreferrer" target=
=3D"_blank">http://www.team.net/archive</a><br>
ohnstydo@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team.=
net/mailman/options/wpta/johnstydo@gmail.com</a><br>
<br>
<br>
</blockquote></div>
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_______________________________________________
wpta@autox.team.net
-------------------------------------
http://www.wptriumph.org
Archive: http://www.team.net/archive
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