--===============7535421774957492226==
--000000000000e036770621f4de69
Content-Transfer-Encoding: quoted-printable
Question for Bob. Through my aircraft engines training and experience and
many years in the automotive industry I have learned that "octane" is only
one of many properties of gasoline which have affects on engine
performance. Octane is a measure of fuel's resistance to pre ignition and
has been grossly over sold to the unknowing public as "the" measure of the
quality of fuel. There are many other properties of gasoline which can
profoundly affect the performance of gasoline but these are seldom
mentioned.
As I understand it as long as the octane rating is high enough for the
effective compression ratio of the engine in which it is being used higher
octane rated fuel is of no benefit. Is that a correct statement?
On Thu., Sep. 12, 2024, 7:36 p.m. Michael Oritt, <michael.oritt@gmail.com>
wrote:
> Bob--
>
> I live in MD where both 93 octane gasohol and alcohol-free fuels are
> available. Aside from some gasoline-powered garden tools for which I
> bought the long-lasting stuff they sell by the gallon I have always used
> pump gas.
> My 2007 Tundra was great in that it would run on 87 whereas my Audi A4
> requires 92--which works out to 93.
> As for the Healey I always use 93 gasohol though I think I am wasting
> money and could probably get by with 91.
> As for my Ginetta G4 (Ford Kent precrossflow) and Elva MK IV (Coventry
> Climax FWB) race cars I buy unleaded high octane (110) at the track and p=
ay
> whatever I must in order to play..
>
> Best--Michael Oritt
>
> On Thu, Sep 12, 2024 at 12:16=E2=80=AFPM Bob Spidell via Healeys <
> healeys@autox.team.net> wrote:
>
>> OK, I'll get the ball rolling.
>>
>> I have a background in chemistry, and have always been interested in
>> stuff chemical, including motor oil and fuel. This is, to me, an
>> interesting take I hadn't given a thought to before. I've always run
>> premium in my Healeys, Lincoln (required) and Mustangs (of course) and m=
y
>> two-strokes* (chainsaws, blower, trimmers), but have made do with
>> regular--mostly Costco--in my other equipment (Ranger, tractors, mower,
>> edger, quad, squirrel gasser, Gator). My engine builder told me the engi=
nes
>> he sees in the best shape have been run exclusively on Chevron premium, =
so
>> the Mustang and Healeys get that whenever possible, the Lincoln and
>> two-strokes get Costco 91; everything else gets Costco 87 (note Costco g=
as
>> claims to be 'Top Tier').
>>
>> * My Stihl 4-stroke string trimmer specs 89-octane, but Costco only has
>> 87/91 so the 2-stroke mix gets 91.
>>
>> https://www.youtube.com/watch?v=3DDAmEGI7xvBw
>>
>>
>> On 9/12/2024 7:27 AM, Steven Kingsbury via Healeys wrote:
>>
>> It's just been very quiet on the list lately. Seems to be less busy, I
>> guess everyone's cars are all running just fine! Ha!
>> Cheers!
>> Steven Kingsbury
>> BN1
>>
>> On Sep 12, 2024, at 12:15 AM, Alan Seigrist <healey.nut@gmail.com>
>> <healey.nut@gmail.com> wrote:
>>
>>
>> Hi Bruce - I see you. did you check your junk folder?
>>
>> Alan
>>
>> On Thu, Sep 12, 2024 at 12:13=E2=80=AFPM healeybruce--- via Healeys <
>> healeys@autox.team.net> wrote:
>>
>>> I=E2=80=99ve not been receiving emails for several weeks.
>>>
>>>
>>>
>>> Bruce Steele
>>>
>>> 1960 BN7
>>>
>>>
>>>
>>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation $12.75
>>
>> Archive: http://www.team.net/pipermail/healeys
>> http://autox.team.net/archive/healeys
>>
>> Healeys@autox.team.net
>> http://autox.team.net/mailman/listinfo/healeys
>>
>> Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/healeys/michael.oritt@gmail.com
>>
>> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
> http://autox.team.net/archive/healeys
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com
>
>
--000000000000e036770621f4de69
Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto">Question for Bob. Through my aircraft engines training an=
d experience and many years in the automotive industry I have learned that =
"octane" is only one of many properties of gasoline which have af=
fects on engine performance.=C2=A0 Octane is a measure of fuel's resist=
ance to pre ignition and has been grossly over sold to the unknowing public=
as "the" measure of the quality of fuel. There are many other pr=
operties of gasoline which can profoundly affect the performance of gasolin=
e but these are seldom mentioned.=C2=A0<div dir=3D"auto">As I understand it=
as long as the octane rating is high enough for the effective compression =
ratio of the engine in which it is being used higher octane rated fuel is o=
f no benefit. Is that a correct statement?</div></div><br><div class=3D"gma=
il_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu., Sep. 12, 2024, 7:3=
6 p.m. Michael Oritt, <<a href=3D"mailto:michael.oritt@gmail.com";>michae=
l.oritt@gmail.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote"=
style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><d=
iv dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">Bob--</=
div><div class=3D"gmail_default" style=3D"color:#3333ff"><br></div><div cla=
ss=3D"gmail_default" style=3D"color:#3333ff">I live in MD where both 93 oct=
ane gasohol=C2=A0and alcohol-free fuels are available.=C2=A0 Aside from som=
e gasoline-powered garden tools for which I bought the long-lasting stuff t=
hey sell by the gallon I have always used pump gas.=C2=A0=C2=A0</div><div c=
lass=3D"gmail_default" style=3D"color:#3333ff">My 2007 Tundra was great in =
that it would run on 87 whereas my=C2=A0Audi A4 requires 92--which works ou=
t to 93.=C2=A0=C2=A0</div><div class=3D"gmail_default" style=3D"color:#3333=
ff">As for the Healey I always use 93 gasohol though I think=C2=A0I am wast=
ing money and could probably get by with 91.</div><div class=3D"gmail_defau=
lt" style=3D"color:#3333ff">As for my Ginetta G4 (Ford Kent=C2=A0precrossfl=
ow) and Elva MK IV (Coventry Climax FWB) race cars I buy unleaded high octa=
ne (110) at the track and pay whatever I must in order to play..</div><div =
class=3D"gmail_default" style=3D"color:#3333ff"><br></div><div class=3D"gma=
il_default" style=3D"color:#3333ff">Best--Michael Oritt</div></div><br><div=
class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Sep 12=
, 2024 at 12:16=E2=80=AFPM Bob Spidell via Healeys <<a href=3D"mailto:he=
aleys@autox.team.net" target=3D"_blank" rel=3D"noreferrer">healeys@autox.te=
am.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex"><u></u>
=20
=20
=20
<div>
OK, I'll get the ball rolling.<br>
<br>
I have a background in chemistry, and have always been interested in
stuff chemical, including motor oil and fuel. This is, to me, an
interesting take I hadn't given a thought to before. I've alway=
s run
premium in my Healeys, Lincoln (required) and Mustangs (of course)
and my two-strokes* (chainsaws, blower, trimmers), but have made do
with regular--mostly Costco--in my other equipment (Ranger,
tractors, mower, edger, quad, squirrel gasser, Gator). My engine
builder told me the engines he sees in the best shape have been run
exclusively on Chevron premium, so the Mustang and Healeys get that
whenever possible, the Lincoln and two-strokes get Costco 91;
everything else gets Costco 87 (note Costco gas claims to be 'Top
Tier'). <br>
<br>
* My Stihl 4-stroke string trimmer specs 89-octane, but Costco only
has 87/91 so the 2-stroke mix gets 91.<br>
<br>
<a href=3D"https://www.youtube.com/watch?v=3DDAmEGI7xvBw"; target=3D"_bl=
ank" rel=3D"noreferrer">https://www.youtube.com/watch?v=3DDAmEGI7xvBw</a><b=
r>
<br>
<br>
<div>On 9/12/2024 7:27 AM, Steven Kingsbury
via Healeys wrote:<br>
</div>
<blockquote type=3D"cite">
=20
<div>
<div>It's just been very quiet on the list lately. Seems to be
less busy, I guess everyone's cars are all running just fine!
Ha!<br>
</div>
<div>Cheers!<br>
</div>
<div>Steven Kingsbury<br>
</div>
<div>BN1=C2=A0<br>
</div>
<div><br>
</div>
<blockquote type=3D"cite">
<div>On Sep 12, 2024, at 12:15 AM, Alan Seigrist
<a href=3D"mailto:healey.nut@gmail.com"; target=3D"_blank" rel=
=3D"noreferrer"><healey.nut@gmail.com></a> wrote:<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div dir=3D"ltr">
<div>Hi Bruce - I see you.=C2=A0 did you check your junk
folder?<br>
</div>
<div><br>
</div>
<div>Alan<br>
</div>
</div>
<div><br>
</div>
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Thu, Sep 12, 2024 at
12:13=E2=80=AFPM healeybruce--- via Healeys <<a href=3D"=
mailto:healeys@autox.team.net"; target=3D"_blank" rel=3D"noreferrer">healeys=
@autox.team.net</a>>
wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px=
solid rgb(204,204,204);padding-left:1ex" class=3D"gmail_quote">
<div>
<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span><span style=3D"font-fami=
ly:"Trebuchet MS",sans-serif"><span style=3D"font-size:12pt">I=E2=
=80=99ve
not been receiving emails for several
weeks.</span></span></span><br>
</p>
<p class=3D"MsoNormal"><span><span style=3D"font-fami=
ly:"Trebuchet MS",sans-serif"><span style=3D"font-size:12pt">=C2=
=A0</span></span></span><br>
</p>
<p class=3D"MsoNormal"><span><span style=3D"font-fami=
ly:"Trebuchet MS",sans-serif"><span style=3D"font-size:12pt">Bruc=
e
Steele</span></span></span><br>
</p>
<p class=3D"MsoNormal"><span><span style=3D"font-fami=
ly:"Trebuchet MS",sans-serif"><span style=3D"font-size:12pt">1960
BN7</span></span></span><br>
</p>
<p class=3D"MsoNormal">=C2=A0<br>
</p>
</div>
</div>
<br>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
_______________________________________________<br>
rer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://www.team.net/pipermail/healeys</a> <=
a href=3D"http://autox.team.net/archive/healeys"; rel=3D"noreferrer noreferr=
er" target=3D"_blank">http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:Healeys@autox.team.net"; target=3D"_blank" rel=3D"noreferr=
er">Healeys@autox.team.net</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys"; rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://autox.team.net/mailman/listinfo/heal=
eys</a><br>
<br>
s/michael.oritt@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blank">=
http://autox.team.net/mailman/options/healeys/michael.oritt@gmail.com</a><b=
r>
<br>
</blockquote></div>
_______________________________________________<br>
rer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://www.team.net/pipermail/healeys</a> <=
a href=3D"http://autox.team.net/archive/healeys"; rel=3D"noreferrer noreferr=
er" target=3D"_blank">http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:Healeys@autox.team.net"; target=3D"_blank" rel=3D"noreferr=
er">Healeys@autox.team.net</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys"; rel=3D"noreferre=
r noreferrer" target=3D"_blank">http://autox.team.net/mailman/listinfo/heal=
eys</a><br>
<br>
s/michaelsalter@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blank">=
http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com</a><b=
r>
<br>
</blockquote></div>
--000000000000e036770621f4de69--
--===============7535421774957492226==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys
http://autox.team.net/archive/healeys
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============7535421774957492226==--
|