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  #11   Report Post  
Gould 0738
 
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Default Old Gas

Given that it has oil mixed in the gas, I would not recommend using it in
the car as your cat and oxygen sensor will not like it and could cause
premature failure.


If the mix is 50:1, and somebody puts 1 quart of the stuff in with 15 gallons
of gas the mix goes to 3000 to 1. I'd be surprise if the o2 sensor is that
sensitive. Nobody sells gas any purer than that.
  #12   Report Post  
Drew Shuller
 
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Default Old Gas

Harvey, Gould 0738's suggestion is the correct one. Even a gas/oil mix, when
added to your car's tank in small quantities, won't harm your car's engine
or fuel system.

Today's gasolines go bad in 30 days. Using gas any older than that will
varnish your carb/fuel system, and you really don't want that to happen.

Drew
Waco, TX


"Harvey Arkawy" wrote in message
om...
I just purchased a used boat with a 1995 Merc 70 hp, 3 cyl. 2 stroke
"Force" motor. The previous owner said that the gas (~ 17 gallons)
was about a year and a half old. I would like to siphon it out into 4
five gallon cans. Has anyone done this and where do you suggest I
dispose of it. Please be kind.... I know where I don't want to put
it. I contacted the local Air Force Base Fire Department to see if
they could use it to burn during a practice fire, but the local Air
Quality Management Department (AQMD) required them to install propane
burners and burn propane during fire practice.

Any help or suggestions would be appreciated.

Harvey



  #13   Report Post  
Harvey Arkawy
 
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Default Old Gas

Tony,

Thanks for your reply. I think I like your's best. They say that
great minds think alike.... I was planning on using 89 octane and
burning about two gallons of the old stuff after each fill up. Not
filling up until the gas gauge indicates less than 1/4 tank.

Thank all of you for your replies as well.

Harvey

"Tony Thomas" wrote in message news:KH1Jc.85677$Oq2.4017@attbi_s52...
Given that it has oil mixed in the gas, I would not recommend using it in
the car as your cat and oxygen sensor will not like it and could cause
premature failure.

2 stroke engines don't like old gas. As gas gets old it will loose its
octane rating and can easily cause pre-detonation. I would suggest you use
3/4 tank of 93 octane fuel to 1/4 tank of this old gas and use it up that
way. The higher octane fresh gas will compensate for the older stuff.


--
Tony
my boats at http://t.thomas.home.mchsi.com

"Harvey Arkawy" wrote in message
om...
I just purchased a used boat with a 1995 Merc 70 hp, 3 cyl. 2 stroke
"Force" motor. The previous owner said that the gas (~ 17 gallons)
was about a year and a half old. I would like to siphon it out into 4
five gallon cans. Has anyone done this and where do you suggest I
dispose of it. Please be kind.... I know where I don't want to put
it. I contacted the local Air Force Base Fire Department to see if
they could use it to burn during a practice fire, but the local Air
Quality Management Department (AQMD) required them to install propane
burners and burn propane during fire practice.

Any help or suggestions would be appreciated.

Harvey

  #14   Report Post  
test
 
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Default Old Gas

Just for non mixed fuel.
I'll agree with Drew, on 1 part of his post quote--"varnish your
carb" I agree. I'm not so sure about Drews's quote --" Today's
gasoline's go bad in 30 days." I own 5.4l mercruiser w/90 gal fuel
cap, also Correct Craft 302 w/20 gal cap. I've had old fuel in the
both 20 and 90 gallon tank stored over 9-to 12 months - aprox 45gals
or more in big tank.
If you ad "Fuel Stabilizer" along with some octane booster and of
coarse some new fuel mixed in should be ready to go. The best advice
is to RUN the motor frequently to move any varnishing on fuel Carb -
jets.
If I'm wrong please correct me or just feel sorry for me.

Regards
Ron
Central FL.

"Drew Shuller" wrote in message ...
Harvey, Gould 0738's suggestion is the correct one. Even a gas/oil mix, when
added to your car's tank in small quantities, won't harm your car's engine
or fuel system.

Today's gasolines go bad in 30 days. Using gas any older than that will
varnish your carb/fuel system, and you really don't want that to happen.

Drew
Waco, TX


"Harvey Arkawy" wrote in message
om...
I just purchased a used boat with a 1995 Merc 70 hp, 3 cyl. 2 stroke
"Force" motor. The previous owner said that the gas (~ 17 gallons)
was about a year and a half old. I would like to siphon it out into 4
five gallon cans. Has anyone done this and where do you suggest I
dispose of it. Please be kind.... I know where I don't want to put
it. I contacted the local Air Force Base Fire Department to see if
they could use it to burn during a practice fire, but the local Air
Quality Management Department (AQMD) required them to install propane
burners and burn propane during fire practice.

Any help or suggestions would be appreciated.

Harvey

  #15   Report Post  
Drew Shuller
 
Posts: n/a
Default Old Gas

Fuel stabilizer is supposed to help, a lot. Let's split hairs:

Would adding fuel stabilizer after the fact turn stale fuel into good fuel?
How much would you have to dilute stale fuel with good fuel so there
wouldn't be a problem? We can all agree that allowing stale fuel to rest in
a carb can varnish it up, but will running the engine with stale fuel cause
problems?

Drew


"test" wrote in message
om...
Just for non mixed fuel.
I'll agree with Drew, on 1 part of his post quote--"varnish your
carb" I agree. I'm not so sure about Drews's quote --" Today's
gasoline's go bad in 30 days." I own 5.4l mercruiser w/90 gal fuel
cap, also Correct Craft 302 w/20 gal cap. I've had old fuel in the
both 20 and 90 gallon tank stored over 9-to 12 months - aprox 45gals
or more in big tank.
If you ad "Fuel Stabilizer" along with some octane booster and of
coarse some new fuel mixed in should be ready to go. The best advice
is to RUN the motor frequently to move any varnishing on fuel Carb -
jets.
If I'm wrong please correct me or just feel sorry for me.

Regards
Ron
Central FL.

"Drew Shuller" wrote in message

...
Harvey, Gould 0738's suggestion is the correct one. Even a gas/oil mix,

when
added to your car's tank in small quantities, won't harm your car's

engine
or fuel system.

Today's gasolines go bad in 30 days. Using gas any older than that will
varnish your carb/fuel system, and you really don't want that to happen.

Drew
Waco, TX


"Harvey Arkawy" wrote in message
om...
I just purchased a used boat with a 1995 Merc 70 hp, 3 cyl. 2 stroke
"Force" motor. The previous owner said that the gas (~ 17 gallons)
was about a year and a half old. I would like to siphon it out into 4


five gallon cans. Has anyone done this and where do you suggest I
dispose of it. Please be kind.... I know where I don't want to put
it. I contacted the local Air Force Base Fire Department to see if
they could use it to burn during a practice fire, but the local Air
Quality Management Department (AQMD) required them to install propane
burners and burn propane during fire practice.

Any help or suggestions would be appreciated.

Harvey





  #16   Report Post  
Tony Thomas
 
Posts: n/a
Default Old Gas

Adding fuel stabilizer after the fact will not fix the fuel.

As for running it - depends on the engine. I would say you can get away
with fairly bad fuel in an I/O and not have much problem - especially if you
mix say 50:50 w/ fresh 92/93 octane.
As for running it in an outboard 2 stroke - they will detonate and punch a
hole in the top of the cylinder. You can probably get away w/ a 20:80 mix
of old to fresh 92/93 octane but I would not go past that point.

--
Tony
my boats at http://t.thomas.home.mchsi.com

"Drew Shuller" wrote in message
...
Fuel stabilizer is supposed to help, a lot. Let's split hairs:

Would adding fuel stabilizer after the fact turn stale fuel into good

fuel?
How much would you have to dilute stale fuel with good fuel so there
wouldn't be a problem? We can all agree that allowing stale fuel to rest

in
a carb can varnish it up, but will running the engine with stale fuel

cause
problems?

Drew


"test" wrote in message
om...
Just for non mixed fuel.
I'll agree with Drew, on 1 part of his post quote--"varnish your
carb" I agree. I'm not so sure about Drews's quote --" Today's
gasoline's go bad in 30 days." I own 5.4l mercruiser w/90 gal fuel
cap, also Correct Craft 302 w/20 gal cap. I've had old fuel in the
both 20 and 90 gallon tank stored over 9-to 12 months - aprox 45gals
or more in big tank.
If you ad "Fuel Stabilizer" along with some octane booster and of
coarse some new fuel mixed in should be ready to go. The best advice
is to RUN the motor frequently to move any varnishing on fuel Carb -
jets.
If I'm wrong please correct me or just feel sorry for me.

Regards
Ron
Central FL.

"Drew Shuller" wrote in message

...
Harvey, Gould 0738's suggestion is the correct one. Even a gas/oil

mix,
when
added to your car's tank in small quantities, won't harm your car's

engine
or fuel system.

Today's gasolines go bad in 30 days. Using gas any older than that

will
varnish your carb/fuel system, and you really don't want that to

happen.

Drew
Waco, TX


"Harvey Arkawy" wrote in message
om...
I just purchased a used boat with a 1995 Merc 70 hp, 3 cyl. 2 stroke
"Force" motor. The previous owner said that the gas (~ 17 gallons)
was about a year and a half old. I would like to siphon it out into

4

five gallon cans. Has anyone done this and where do you suggest I
dispose of it. Please be kind.... I know where I don't want to put
it. I contacted the local Air Force Base Fire Department to see if
they could use it to burn during a practice fire, but the local Air
Quality Management Department (AQMD) required them to install

propane
burners and burn propane during fire practice.

Any help or suggestions would be appreciated.

Harvey





  #17   Report Post  
Shawn Willden
 
Posts: n/a
Default Old Gas

Tony Thomas wrote:

Adding fuel stabilizer after the fact will not fix the fuel.

As for running it - depends on the engine. I would say you can get away
with fairly bad fuel in an I/O and not have much problem - especially if
you mix say 50:50 w/ fresh 92/93 octane.


Why use higher octane?

Shawn.
  #18   Report Post  
Camilo
 
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Default Old Gas

"Shawn Willden" wrote in message
...
Tony Thomas wrote:

Adding fuel stabilizer after the fact will not fix the fuel.

As for running it - depends on the engine. I would say you can get

away
with fairly bad fuel in an I/O and not have much problem - especially if
you mix say 50:50 w/ fresh 92/93 octane.


Why use higher octane?

Shawn.


I don't know if the higher octane has anything to do with helping out with
the stale gas situation. I do know that with my old I/O, the compression
and/or timing was set up in such a way that low octane fuel caused knocking,
dieseling, and my mechanic told me, would cause damage.


  #19   Report Post  
Shawn Willden
 
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Default Old Gas

Camilo wrote:

I don't know if the higher octane has anything to do with helping out with
the stale gas situation. I do know that with my old I/O, the compression
and/or timing was set up in such a way that low octane fuel caused
knocking, dieseling, and my mechanic told me, would cause damage.


Right, I understand that high octane fuel prevents premature ignition (that
being the whole purpose of high octane fuel), and that premature ignition
causes damage.

Is old fuel more prone to premature ignition? That would be the only
obvious reason for a recommendation to mix with high-octane fuel.

Thanks,

Shawn.
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