unleaded gas or not

Archived posts from the 2 Cylinder Hondas Yahoo Group
Post Reply
tdthies1
Posts: 74
Joined: Mon Apr 02, 2007 2:58 pm

unleaded gas or not

Post by tdthies1 »

when i bought my 72 yellow honda i have been using lead additive but
when i bought my green one Mark said he just uses premium. so what
does everyone use. Also has anyone ever have any dealings with a Mark
Cross in oregon?
Thanks for any help
Tom
infinkc
Posts: 124
Joined: Tue Apr 27, 2004 1:42 am

Re: unleaded gas or not

Post by infinkc »

I use premium in mine, no problems runs great beside the fact its only
91octane in Cali :(
scott lesniak
Posts: 34
Joined: Tue Mar 20, 2007 10:21 am

Re: unleaded gas or not

Post by scott lesniak »

Hello guys
Remember OCTANE is the ability not to burn.So You want
to run premium in your car because the Honda 600 runs
on high compression 165# So if you run low octane fuel
it will detonate before the piston reaches the top of
the chamber thus causing pre ignition which will
eventually ruin your engine {Hard on Bearings and
Valves}even if you don't hear it it's still happening
In a lower compression engine it doesn't make alot of
difference because the fuel will not pre ignite .
Just to make it simple think of a diesel .Diesel is
high octane. If you where to put gas in a diesel it
would preignite and toast the engine. Also dont waste
money on octane booster all it is is kerosene so if
you want higher octane fuel add a half pint of
kerosene to 5 gal of low octane fuel . this will raise
the octane leve you can also adjust the formula to you
needs..Just smell octane booster some time if you
don't belive me .or just send a 7 dollar bottle of
booster to the lab and see what the results are.
Hope this helps
Scott
--- tdthies1 wrote:
> when i bought my 72 yellow honda i have been using
> lead additive but
> when i bought my green one Mark said he just uses
> premium. so what
> does everyone use. Also has anyone ever have any
> dealings with a Mark
> Cross in oregon?
> Thanks for any help
> Tom
Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase.
http://farechase.yahoo.com/
friend
Posts: 0
Joined: Fri Sep 14, 2012 10:54 pm

Re: unleaded gas or not

Post by friend »

Scott,
You need to read your manual, the Honda 600 has a compression ratio of
8.3 to 1, that is low compression. High it 9 to 1 or higher. I have run
all my Honda 600's on regular for years.
Bill
-----Original Message-----
From: 2cylinderhondas@yahoogroups.com
[mailto:2cylinderhondas@yahoogroups.com]On Behalf Of scott lesniak
Sent: Tuesday, May 15, 2007 5:55 PM
To: 2cylinderhondas@yahoogroups.com
Subject: Re: [2cylinderhondas] unleaded gas or not
Hello guys
Remember OCTANE is the ability not to burn.So You want
to run premium in your car because the Honda 600 runs
on high compression 165# So if you run low octane fuel
it will detonate before the piston reaches the top of
the chamber thus causing pre ignition which will
eventually ruin your engine {Hard on Bearings and
Valves}even if you don't hear it it's still happening
In a lower compression engine it doesn't make alot of
difference because the fuel will not pre ignite .
Just to make it simple think of a diesel .Diesel is
high octane. If you where to put gas in a diesel it
would preignite and toast the engine. Also dont waste
money on octane booster all it is is kerosene so if
you want higher octane fuel add a half pint of
kerosene to 5 gal of low octane fuel . this will raise
the octane leve you can also adjust the formula to you
needs..Just smell octane booster some time if you
don't belive me .or just send a 7 dollar bottle of
booster to the lab and see what the results are.
Hope this helps
Scott
--- tdthies1 wrote:
> when i bought my 72 yellow honda i have been using
> lead additive but
> when i bought my green one Mark said he just uses
> premium. so what
> does everyone use. Also has anyone ever have any
> dealings with a Mark
> Cross in oregon?
> Thanks for any help
> Tom
> Looking for a
deal? Find great prices on flights and hotels with Yahoo! FareChase.
http://farechase.yahoo.com/
scott lesniak
Posts: 34
Joined: Tue Mar 20, 2007 10:21 am

Re: unleaded gas or not

Post by scott lesniak »

No that is a low compression ratio not amount of
compression in the cylinder ,They are different and it
is a high compression engine thus the 165 lbs per
cylinder in the hond compared to 110 to 120lbs of
other lower compression engines
. Oh I really can read and I didn't say you couldn't
run low octane just said that it is better to run
higher octane for your enging it isn't some big
mystery.
Scott
--- billmyong@... wrote:
> Scott,
> You need to read your manual, the Honda 600 has
> a compression ratio of
> 8.3 to 1, that is low compression. High it 9 to 1
> or higher. I have run
> all my Honda 600's on regular for years.
> Bill
> -----Original Message-----
> From:
2cylinderhondas@yahoogroups.com
> [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of
> scott lesniak
> Sent: Tuesday, May 15, 2007 5:55 PM
> To:
2cylinderhondas@yahoogroups.com
> Subject: Re: [2cylinderhondas] unleaded gas or not
> Hello guys
> Remember OCTANE is the ability not to burn.So You
> want
> to run premium in your car because the Honda 600
> runs
> on high compression 165# So if you run low octane
> fuel
> it will detonate before the piston reaches the top
> of
> the chamber thus causing pre ignition which will
> eventually ruin your engine {Hard on Bearings and
> Valves}even if you don't hear it it's still
> happening
> In a lower compression engine it doesn't make alot
> of
> difference because the fuel will not pre ignite .
> Just to make it simple think of a diesel .Diesel
> is
> high octane. If you where to put gas in a diesel
> it
> would preignite and toast the engine. Also dont
> waste
> money on octane booster all it is is kerosene so
> if
> you want higher octane fuel add a half pint of
> kerosene to 5 gal of low octane fuel . this will
> raise
> the octane leve you can also adjust the formula to
> you
> needs..Just smell octane booster some time if you
> don't belive me .or just send a 7 dollar bottle of
> booster to the lab and see what the results are.
> Hope this helps
> Scott
> --- tdthies1 wrote:
> > when i bought my 72 yellow honda i have been
> using
> > lead additive but
> > when i bought my green one Mark said he just
> uses
> > premium. so what
> > does everyone use. Also has anyone ever have any
> > dealings with a Mark
> > Cross in oregon?
> > Thanks for any help
> > Tom
> Looking
> for a
> deal? Find great prices on flights and hotels with
> Yahoo! FareChase.
http://farechase.yahoo.com/
Sick sense of humor? Visit Yahoo! TV's
Comedy with an Edge to see what's on, when.
http://tv.yahoo.com/collections/222
Miles
Posts: 361
Joined: Mon Aug 04, 2003 5:32 pm

Re: leaded gas or lead foot

Post by Miles »

Most of the gasoline where I live has alcohol in it, low octane gas
here starts at 87, midgrade is around 89 and Premium is 91 or 92
octane. I have always run regular in my engines and when the state
took away our Leaded Gasoline the question was raised about using
lead additive.
My machinist said that the Honda 600 has hardened valve seats so I
didn't need the lead. I have never added lead and haven't ever had
any problems. I have used octane boost a few times, but I had also
shaved the head by .030" which besides raising the compression also
changes the valve timing. This could be corrected by using thicker
gaskets under the cylinder base and/or rocker box to head gaskets.
And just because you are supposed to have 165 PSI compression,
doesn't mean you will and don't cry if you don't. Start crying when
it drops below 125 PSI and don't forget if you test it with the
throttle wide open or closed you will get different readings and if
you lube the bores before testing, you are just cheating!
Miles
friend
Posts: 0
Joined: Fri Sep 14, 2012 10:54 pm

Re: unleaded gas or not

Post by friend »

Scott;
Ok, if you have read your owners manual then you know that on page 12 of
the 1971 Coupe manual, Regular grade of gasoline is recommended. But, I can
see your confusion when you read the 1972 Sedan onwers manual where it
recommends 91 research octaine, which in 1972 was medium grade gasoline with
89 being regular. The oil companies have sold us such a bunch of bull that
we now believe 87 Octain is regular.
You can burn up your cash any way you like, but your Honda just doesn't
need the extras. Unless you have some of Mike's High Compression pistons in
your engine.
Bill
-----Original Message-----
From: 2cylinderhondas@yahoogroups.com
[mailto:2cylinderhondas@yahoogroups.com]On Behalf Of scott lesniak
Sent: Wednesday, May 16, 2007 9:22 AM
To: 2cylinderhondas@yahoogroups.com
Subject: RE: [2cylinderhondas] unleaded gas or not
No that is a low compression ratio not amount of
compression in the cylinder ,They are different and it
is a high compression engine thus the 165 lbs per
cylinder in the hond compared to 110 to 120lbs of
other lower compression engines
. Oh I really can read and I didn't say you couldn't
run low octane just said that it is better to run
higher octane for your enging it isn't some big
mystery.
Scott
--- billmyong@... wrote:
> Scott,
> You need to read your manual, the Honda 600 has
> a compression ratio of
> 8.3 to 1, that is low compression. High it 9 to 1
> or higher. I have run
> all my Honda 600's on regular for years.
> Bill
> -----Original Message-----
> From:
2cylinderhondas@yahoogroups.com
> [mailto:
2cylinderhondas@yahoogroups.com
]On Behalf Of
> scott lesniak
> Sent: Tuesday, May 15, 2007 5:55 PM
> To:
2cylinderhondas@yahoogroups.com
> Subject: Re: [2cylinderhondas] unleaded gas or not
> Hello guys
> Remember OCTANE is the ability not to burn.So You
> want
> to run premium in your car because the Honda 600
> runs
> on high compression 165# So if you run low octane
> fuel
> it will detonate before the piston reaches the top
> of
> the chamber thus causing pre ignition which will
> eventually ruin your engine {Hard on Bearings and
> Valves}even if you don't hear it it's still
> happening
> In a lower compression engine it doesn't make alot
> of
> difference because the fuel will not pre ignite .
> Just to make it simple think of a diesel .Diesel
> is
> high octane. If you where to put gas in a diesel
> it
> would preignite and toast the engine. Also dont
> waste
> money on octane booster all it is is kerosene so
> if
> you want higher octane fuel add a half pint of
> kerosene to 5 gal of low octane fuel . this will
> raise
> the octane leve you can also adjust the formula to
> you
> needs..Just smell octane booster some time if you
> don't belive me .or just send a 7 dollar bottle of
> booster to the lab and see what the results are.
> Hope this helps
> Scott
> --- tdthies1 wrote:
> > when i bought my 72 yellow honda i have been
> using
> > lead additive but
> > when i bought my green one Mark said he just
> uses
> > premium. so what
> > does everyone use. Also has anyone ever have any
> > dealings with a Mark
> > Cross in oregon?
> > Thanks for any help
> > Tom
> Looking
> for a
> deal? Find great prices on flights and hotels with
> Yahoo! FareChase.
http://farechase.yahoo.com/
> Sick sense of
humor? Visit Yahoo! TV's
Comedy with an Edge to see what's on, when.
http://tv.yahoo.com/collections/222
Post Reply