02-14-2006, 11:52 PM
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#1
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100 octane in a high mile regular car
this kid who like next door to me ask me today what would happen if you put 100 Octane in a regular motor what would happen? so I ask him where the hell would you get 100 octane cause i have never seen it for sale. so he told me he got it from a guy he know who work for one of the pit crew down in NC. and he use it in his 2002 Monty Carlo which has over 100k on it and now its running like chit. he said it only running on 2 cly now. i told him that gas pronely will blow all his gasket out because of the super high compression of the gas. and its only safe to use it if your motor is rebuilt from top to botton like a race car !moron!
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02-15-2006, 04:17 AM
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#2
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other than horrid gas mileage...
the car ran really smooth.
in So cal, last time i bought 100 octane was around 5.49 a gallon.
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02-15-2006, 06:18 AM
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#3
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If its not a high compression engine, your pretty much waisting money. If it's meant to run on 87 octane or the like, adding more octane won't really do that much.
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02-16-2006, 11:16 PM
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#4
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It is a absolute complete waste of money and the car will run hotter than shit.
It's running crappy because the higher octane gas burns slower and hotter....the timing, compression, and other aspects of his motor are not designed for this. They're meant for 87ish octane, just like the manual says 
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02-26-2006, 04:14 AM
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#5
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Quote:
Originally posted by Northof49
It is a absolute complete waste of money and the car will run hotter than shit.
It's running crappy because the higher octane gas burns slower and hotter....the timing, compression, and other aspects of his motor are not designed for this. They're meant for 87ish octane, just like the manual says
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WERD! North has it 100% right. 9:1 compression ratios do not like 100octane.
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02-27-2006, 12:46 PM
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#6
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Re: 100 octane in a high mile regular car
Quote:
Originally posted by Mr.yoshimura
so he told me he got it from a guy he know who work for one of the pit crew down in NC.
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What type of race cars? It could be one of many fuel blends used at tracks. It may not simply be 100 octane unleaded gas.
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03-04-2006, 10:55 PM
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#7
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its more than likely VP, sonoco or 76 100 octane..
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03-05-2006, 11:20 AM
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#8
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100 Octane Fuel
A friend of mine used to have a 1969 Chevelle with a custom-built 427 V-8. He used aviation gasoline in it (which was leaded gasoline that was about 100 octane) because it had 12:1 pistons and a wild cam.
It just never ran right on "pump" gas - unless you dumped a bunch of additives and boosters into every tank.
In its day, back during the 1980s, it was one of the quickest street-legal cars in PA.
Using such fuel in a 'normal' vehicle is probably not a good idea, though. At the very least, you would be wasting a ton of money. At the worst, you risk severe engine damage. That stuff has to burn very, very hot!
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