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Old 05/23/08, 10:54 PM
lj lj is offline
 
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2 cycle gas mix in car?

Every year about this time, I put my fishing boat in the water. I always have about 3 gallons of oil/ gas mix for the 2 cycle outboard left from last year. I am reluctant to run this after sitting all winter. I have heard that you can add it to a full tank of gas in your car and it will be so diluted it won't hurt anything. I'm not sure. Any ideas? Thanks

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Old 05/23/08, 10:59 PM
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If you car is carbureted, then sure, it should be fine.

Fuel injected, I wouldn't take a chance.

Pony!
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Old 05/24/08, 03:17 AM
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put some fuel stabilizer in the can of gas before you leave it for the winter, it works for my boat, weed eater, chain saw gas. i put some in every gas tank also and run it before i park it for the winter except for the cahin saw, it never seems to get parked.

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Old 05/24/08, 07:48 AM
 
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I've done it several times, works fine, just make sure it's "diluted" enough so it won't foul the plugs.

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Old 05/24/08, 09:52 AM
 
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Quote:
Originally Posted by lj View Post
Every year about this time, I put my fishing boat in the water. I always have about 3 gallons of oil/ gas mix for the 2 cycle outboard left from last year. I am reluctant to run this after sitting all winter. I have heard that you can add it to a full tank of gas in your car and it will be so diluted it won't hurt anything. I'm not sure. Any ideas? Thanks
DH says you might damage the catalytic converter, which could cost you big bucks if it stops up. Both in fuel economy, and replacement.

He suggested that you consider burning it in the lawnmower, or an old gasoline tractor maybe.
Or, just sweeten it with fresh gasoline mix, and burn it in the outboard.

just a thought.
di
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Old 05/24/08, 11:00 AM
 
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Originally Posted by Dianol View Post
DH says you might damage the catalytic converter, which could cost you big bucks if it stops up. Both in fuel economy, and replacement.

He suggested that you consider burning it in the lawnmower, or an old gasoline tractor maybe.
Or, just sweeten it with fresh gasoline mix, and burn it in the outboard.

just a thought.
di
The key here is finding a mechanica that will just bypass the cat converter for you. My MPG will go up, your engine power will go up, and no big bucks for replacing platinum parts in your car!
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Old 05/24/08, 10:36 PM
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We had a car with a carbeurator. Stupid BIL put his dirt bike 2 cycle gas (less than 1 gallon) in our car (4 cylinder, half tank of gas). The car smoked, ran rough, wouldn't idle right. Took 3 or 5 tanks of gas to get it to start running decent but it never did run right again.

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Old 05/25/08, 01:13 AM
 
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Originally Posted by Goatguy View Post
The key here is finding a mechanica that will just bypass the cat converter for you. My MPG will go up, your engine power will go up, and no big bucks for replacing platinum parts in your car!
That depends. Some vehicles are very carefully engineered for the back pressure that the cat provides and altering the exhaust can throw the engine management system out of whack and it can have a detrimental impact on both mileage and performance. On older and simpler vehicles you can often get away with removing the cat or bypassing it but on newer vehicles sometimes it doesn't work out as well.

Once upon a time they wouldn't pass you through vehicle inspection if the cat was removed. Some enterprising individuals took to taking old cats, gutting them, and welding a straight pipe through them. Looked to all the world like a functioning cat under there but in fact it was just a shell around a section of straight pipe.
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Old 05/25/08, 07:48 PM
 
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Originally Posted by Dianol View Post
He suggested that you consider burning it in the lawnmower, or an old gasoline tractor maybe.

just a thought.
di
That's what I do. Every summer I pour my leftover chainsaw gas in the riding lawnmower and cut grass with it. Come fall, I pour my leftover weedeater gas in the riding lawnmower to haul wood to the porch. No waste here.
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Old 05/27/08, 07:31 PM
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I have a fuel injection car
I have use old 2 stroke /cycle fuel in the car both in a emergency ( ran out) and to just to get rid of it ( old) but in both cases I filled the car up with gas after I put in the tank, as it dilutes the oil content of the 2 cycle fuel

car still runs and no problems. however I my car is 10-15 years old. have no idea how it will effect newer model vehicles

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Old 05/27/08, 09:09 PM
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Originally Posted by Danaus29 View Post
We had a car with a carbeurator. Stupid BIL put his dirt bike 2 cycle gas (less than 1 gallon) in our car (4 cylinder, half tank of gas). The car smoked, ran rough, wouldn't idle right. Took 3 or 5 tanks of gas to get it to start running decent but it never did run right again.
This qualifies as scientific proof that placing "less th[e]n 1 gallon" of mixed gas into an automobile is a suicidal proposition.

Seriously, dump the stuff in your car, fill the tank with straight gas and continue loving life. The two drops of oil per gallon will do absolutely nothing whatsoever.

Pete
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Old 05/27/08, 09:20 PM
 
Join Date: Dec 2005
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I put chainsaw gas in my car all the time
car has 295,000 on it,still running strong . I drive 75 miles round trip to work everyday

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