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Re: [Mgs] Oil viscosity for 3.5 V8 engine

To: Dan DiBiase <dan.dibiase@gmail.com>
Subject: Re: [Mgs] Oil viscosity for 3.5 V8 engine
From: Richard Lindsay <richardolindsay@gmail.com>
Date: Mon, 10 Oct 2022 07:06:47 -0500
Cc: mglist <mgs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: mgs@autox.team.net
References: <!&!AAAAAAAAAAAuAAAAAAAAAJAi5C+WBKREpYgZuDHJbjsBAMO2jhD3dRHOtM0AqgC7tuYAAAAAAA4AABAAAADdFE08lkNHQ4r5iOuwoBrjAQAAAAA=@hartcom.net> <B140441F-DDF5-47DE-B7A7-3A0C3AD8718F@sonic.net> <CAOc+-dyOeAYwCJqjzmcQq3p=ZBx1WG6FXsMAXUZQBr_rzZgP6g@mail.gmail.com> <CABxEc+mNWNEEumNdfBKhqB=k+Nhix72D3_zP5fCind+6bwm2FQ@mail.gmail.com>
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Hi Dan. I do like the early cars...

On Mon, Oct 10, 2022, 7:01 AM Dan DiBiase <dan.dibiase@gmail.com> wrote:

> Rick, you need to add this one to your collection! Looks like it's in
> great shape and inexpensive....
>
> https://houston.craigslist.org/cto/d/katy-1963-mgb/7540334022.html
>
> Dan D
> '76B
> Central NJ USA
>
> On Sat, Oct 8, 2022 at 8:38 AM Richard Lindsay <richardolindsay@gmail.com=
>
> wrote:
>
>>    All good words Max. Thanks. I didn't know about the 15W50 Mobile 1
>> zinc thing.
>>    Where I live it never really gets cold, so a constant viscosity oil
>> would even work. That said, I don't drive my cars enough to worry about
>> wear. I just play with them. My go-to oil for everything older is Castro=
l
>> GTX 20W50.
>>    I guess I should define 'everything older'. Specifically, I mean my
>> '53 TD, '71 Volvo 1800E, '72 MGB, '73 E-Type (V12), and even my 25-year-=
old
>> =C3=BCber-high mileage Nissan D21 pickup. Everything else/newer gets wha=
tever
>> the Owner's Manual recommends.
>>
>> Rick, in Houston
>> PS: Classic Plymouths are awesome.
>>
>> On Sat, Oct 8, 2022, 2:13 AM Max Heim <mvheim@sonic.net> wrote:
>>
>>> I am using 15W50 in all my cars at this point: 1966 MGB, 1967 Plymouth
>>> slant six, 1967 Plymouth 4bbl V8; specifically, Mobil1 15W50 which is
>>> formulated for flat tappet engines and has 1500ppm zinc. Note that othe=
r
>>> weights of this brand are NOT appropriate for older cars.
>>>
>>> 50 is not too high viscosity for summer use in California (it=E2=80=99s=
 really
>>> what you want), and 15W indicates that is not too heavy for winter use.
>>>
>>> --
>>> Max Heim
>>> '66 MGB
>>>
>>> On Oct 7, 2022, at 8:02 AM, <jimray@hartcom.net> <jimray@hartcom.net>
>>> wrote:
>>>
>>> I am puzzled about the proper oil viscosity for my Rover 3.5 V8 engine.
>>> Des Hammill's book *How to Power Tune RV8 Engines *states =E2=80=9CAnyo=
ne used
>>> to oil pressures hovering around 70 =E2=80=93 75 psi on an MGB 1800 eng=
ine will be
>>> alarmed to see pressures in the Rover V8 reading 15 =E2=80=93 40 psi. T=
hese engines
>>> are low-pressure engines with normal pressures (hot) at 20 psi idle usi=
ng a
>>> 15W 50 oil, and 40 psi over about 3500 rpm.=E2=80=9D  Its time for me t=
o change the
>>> oil in mine and 15W 50 seems a bit high when compared to oil normally u=
sed
>>> in my other US built cars. Anyone have any thoughts or suggestions to t=
his?
>>>
>>> Thanks in advance for your input.
>>>
>>> Jim Ray
>>>
>>> _______________________________________________
>>
>> Mgs@autox.team.net
>> Donate: http://www.team.net/donate.html
>> Suggested annual donation  $12.75
>>
>> Archive: http://www.team.net/pipermail/mgs http://autox.team.net/archive
>>
>> Unsubscribe:
>> http://autox.team.net/mailman/options/mgs/dan.dibiase@gmail.com
>>
>

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<div dir=3D"auto">Hi Dan. I do like the early cars...</div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Oct 10, 2022=
, 7:01 AM Dan DiBiase &lt;<a href=3D"mailto:dan.dibiase@gmail.com";>dan.dibi=
ase@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div d=
ir=3D"ltr">Rick, you need to add this one to your collection! Looks like it=
&#39;s in great shape and inexpensive....<div><br></div><div><a href=3D"htt=
ps://houston.craigslist.org/cto/d/katy-1963-mgb/7540334022.html" target=3D"=
_blank" rel=3D"noreferrer">https://houston.craigslist.org/cto/d/katy-1963-m=
gb/7540334022.html</a><br></div><div><br></div><div>Dan D</div><div>&#39;76=
B</div><div>Central NJ USA</div></div><br><div class=3D"gmail_quote"><div d=
ir=3D"ltr" class=3D"gmail_attr">On Sat, Oct 8, 2022 at 8:38 AM Richard Lind=
say &lt;<a href=3D"mailto:richardolindsay@gmail.com"; target=3D"_blank" rel=
=3D"noreferrer">richardolindsay@gmail.com</a>&gt; wrote:<br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto"><div>=C2=A0 =C2=
=A0All good words Max. Thanks. I didn&#39;t know about the 15W50 Mobile 1 z=
inc thing.=C2=A0</div><div dir=3D"auto">=C2=A0 =C2=A0Where I live it never =
really gets cold, so a constant viscosity oil would even work. That said, I=
 don&#39;t drive my cars enough to worry about wear. I just play with them.=
 My go-to oil for everything older is Castrol GTX 20W50.</div><div dir=3D"a=
uto">=C2=A0 =C2=A0I guess I should define &#39;everything older&#39;. Speci=
fically, I mean my &#39;53 TD, &#39;71 Volvo 1800E, &#39;72 MGB, &#39;73 E-=
Type (V12), and even my 25-year-old =C3=BCber-high mileage Nissan D21 picku=
p. Everything else/newer gets whatever the Owner&#39;s Manual recommends.</=
div><div dir=3D"auto"><br></div><div dir=3D"auto">Rick, in Houston</div><di=
v dir=3D"auto">PS: Classic Plymouths are awesome.<br><br><div class=3D"gmai=
l_quote" dir=3D"auto"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Oct 8, =
2022, 2:13 AM Max Heim &lt;<a href=3D"mailto:mvheim@sonic.net"; target=3D"_b=
lank" rel=3D"noreferrer">mvheim@sonic.net</a>&gt; wrote:<br></div><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex"><div>I am using 15W50 in all my ca=
rs at this point: 1966 MGB, 1967 Plymouth slant six, 1967 Plymouth 4bbl V8;=
 specifically, Mobil1 15W50 which is formulated for flat tappet engines and=
 has 1500ppm zinc. Note that other weights of this brand are NOT appropriat=
e for older cars.<div><br></div><div>50 is not too high viscosity for summe=
r use in California (it=E2=80=99s really what you want), and 15W indicates =
that is not too heavy for winter use.</div><div><br><div>
<div style=3D"color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-=
indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><div st=
yle=3D"color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:=
0px;text-transform:none;white-space:normal;word-spacing:0px"><div style=3D"=
margin:0px;font-size:13px">--</div><div style=3D"margin:0px;font-size:13px;=
min-height:16px">Max Heim</div><div style=3D"margin:0px;font-size:13px">&#3=
9;66 MGB</div></div></div>
</div>

<div><br><blockquote type=3D"cite"><div>On Oct 7, 2022, at 8:02 AM, &lt;<a =
href=3D"mailto:jimray@hartcom.net"; rel=3D"noreferrer noreferrer" target=3D"=
_blank">jimray@hartcom.net</a>&gt; &lt;<a href=3D"mailto:jimray@hartcom.net=
" rel=3D"noreferrer noreferrer" target=3D"_blank">jimray@hartcom.net</a>&gt=
; wrote:</div><br><div><div style=3D"font-family:Verdana;font-size:13px;fon=
t-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:n=
ormal;text-align:start;text-indent:0px;text-transform:none;white-space:norm=
al;word-spacing:0px;text-decoration:none"><div style=3D"margin:0in;font-siz=
e:11pt;font-family:Calibri,sans-serif"><span style=3D"font-size:12pt">I am =
puzzled about the proper oil viscosity for my Rover 3.5 V8 engine. Des Hamm=
ill&#39;s book<span>=C2=A0</span><i>How to Power Tune RV8 Engines<span>=C2=
=A0</span></i>states =E2=80=9CAnyone used to oil pressures hovering around =
70 =E2=80=93 75 psi on an MGB 1800 engine will be alarmed to see pressures =
in the Rover V8 reading 15 =E2=80=93 40 psi. These engines are low-pressure=
 engines with normal pressures (hot) at 20 psi idle using a 15W 50 oil, and=
 40 psi over about 3500 rpm.=E2=80=9D =C2=A0Its time for me to change the o=
il in mine and 15W 50 seems a bit high when compared to oil normally used i=
n my other US built cars. Anyone have any thoughts or suggestions to this?<=
u></u><u></u></span></div><div style=3D"margin:0in;font-size:11pt;font-fami=
ly:Calibri,sans-serif"><span style=3D"font-size:12pt"><u></u>=C2=A0<u></u><=
/span></div><div style=3D"margin:0in;font-size:11pt;font-family:Calibri,san=
s-serif"><span style=3D"font-size:12pt">Thanks in advance for your input.<u=
></u><u></u></span></div><div style=3D"margin:0in;font-size:11pt;font-famil=
y:Calibri,sans-serif"><span style=3D"font-size:12pt"><u></u>=C2=A0<u></u></=
span></div><div style=3D"margin:0in;font-size:11pt;font-family:Calibri,sans=
-serif"><span style=3D"font-size:12pt">Jim Ray</span></div></div></div></bl=
ockquote></div></div></div>
</blockquote></div></div></div>
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