* What type of Gas are you feeding your Monte ?
#31
07-13-2007, 10:05 AM
RE: * What type of Gas are you feeding your Monte ?
i run premium that is 91 octane around here cant find 93 anymore and i put octane boots in it to get it around 97-98 as far as the brands i got with erving, canadien tire ,esso
i wish that there was a sunoco station around though to get some good 104
i wish that there was a sunoco station around though to get some good 104
#32
07-13-2007, 10:40 AM
Join Date: Apr 2006
Location: Woodstock, Ontario, Canada
Posts: 5,264
RE: * What type of Gas are you feeding your Monte ?
what octane boost do you use???
because most octane booster's actually dont do anything really, the only one that actually boosts the octane more than 1 level of gas is lucas i think it boosts it around 6 or 7
the other ones that say 3 or 4 they mean .3 or .4
because most octane booster's actually dont do anything really, the only one that actually boosts the octane more than 1 level of gas is lucas i think it boosts it around 6 or 7
the other ones that say 3 or 4 they mean .3 or .4
#33
07-13-2007, 11:32 AM
RE: * What type of Gas are you feeding your Monte ?
[align=center]
[/align][align=center]What does octane mean? [/align][align=center][/align][align=center]by M. Brain[/align][align=center][/align][/align][align=center]
If you've read How Car Engines Work, you know that almost all cars use four-stroke gasoline engines. One of the strokes is the compression stroke, where the engine compresses a cylinder-full of air and gas into a much smaller volume before igniting it with a spark plug. The amount of compression is called the compression ratio of the engine. A typical engine might have a compression ratio of 8-to-1. (See How Car Engines Work for details.)
The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.
The compression ratio of your engine determines the octane rating of the gas you must use in the car. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more.
The name "octane" comes from the following fact: When you take crude oil and "crack" it in a refinery, you end up getting hydrocarbon chains of different lengths. These different chain lengths can then be separated from each other and blended to form different fuels. For example, you may have heard of methane, propane and butane. All three of them are hydrocarbons. Methane has just a single carbon atom. Propane has three carbon atoms chained together. Butane has four carbon atoms chained together. Pentane has five, hexane has six, heptane has seven and octane has eight carbons chained together.
It turns out that heptane handles compression very poorly. Compress it just a little and it ignites spontaneously. Octane handles compression very well -- you can compress it a lot and nothing happens. Eighty-seven-octane gasoline is gasoline that contains 87-percent octane and 13-percent heptane (or some other combination of fuels that has the same performance of the 87/13 combination of octane/heptane). It spontaneously ignites at a given compression level, and can only be used in engines that do not exceed that compression ratio.
[b]During WWI, it was discovered that you can add a chemical called tetraethyl lead (TEL) to gasoline and significantly improve its octane rating above the octane/heptane combination. Cheaper grades of gasoline could be made usable by adding TEL. This led to the widespread use o
[/align][align=center]What does octane mean? [/align][align=center][/align][align=center]by M. Brain[/align][align=center][/align][/align][align=center]
If you've read How Car Engines Work, you know that almost all cars use four-stroke gasoline engines. One of the strokes is the compression stroke, where the engine compresses a cylinder-full of air and gas into a much smaller volume before igniting it with a spark plug. The amount of compression is called the compression ratio of the engine. A typical engine might have a compression ratio of 8-to-1. (See How Car Engines Work for details.)
The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.
The compression ratio of your engine determines the octane rating of the gas you must use in the car. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more.
The name "octane" comes from the following fact: When you take crude oil and "crack" it in a refinery, you end up getting hydrocarbon chains of different lengths. These different chain lengths can then be separated from each other and blended to form different fuels. For example, you may have heard of methane, propane and butane. All three of them are hydrocarbons. Methane has just a single carbon atom. Propane has three carbon atoms chained together. Butane has four carbon atoms chained together. Pentane has five, hexane has six, heptane has seven and octane has eight carbons chained together.
It turns out that heptane handles compression very poorly. Compress it just a little and it ignites spontaneously. Octane handles compression very well -- you can compress it a lot and nothing happens. Eighty-seven-octane gasoline is gasoline that contains 87-percent octane and 13-percent heptane (or some other combination of fuels that has the same performance of the 87/13 combination of octane/heptane). It spontaneously ignites at a given compression level, and can only be used in engines that do not exceed that compression ratio.
[b]During WWI, it was discovered that you can add a chemical called tetraethyl lead (TEL) to gasoline and significantly improve its octane rating above the octane/heptane combination. Cheaper grades of gasoline could be made usable by adding TEL. This led to the widespread use o
#34
07-13-2007, 11:34 AM
RE: * What type of Gas are you feeding your Monte ?
[align=center][/align][align=center]
What's Octane???
Background
There's always a lot of confusion regarding octane, octane-boosters and how they work. Typical misconceptions are evident in blank-statements like:
"Higher octane fuels burn slower, thus their higher octane number"
"Higher octane fuels burn hotter, therefore more power is generated"
Higher octane fuels explodes with more force, thus their higher power"
Both of which are untrue and are coincidental in effect, rather than causal. In actual practice, an engine has to be tuned specifically for high-octane fuels to generate extra power. If you have an engine fully-tuned and optimized for 91-octane pump gas, adding 100-octane race-gas into it will yield little if any increase. However, if you were to take that engine and increase the compression, advance the knock and/or increase the boost, then you can take advantage of the higher-octane fuel. But this precludes going back to the previous lower-octane fuels.
Three Kinds of Octane Boosters - 1. ORGANO-METALLICS
There are three primary octane-boosting additives mixed in with gasoline: organo-metallics, ethers/alcohols and aromatics. Each one has distinct chemical properties and results (along with side-effects) on octane-boosting. Some people get these families of compounds and their effects mixed up.
First, let's look at organo-metallics which is used in the little bottles of over-the-counter octane boosters, what makes them work and how they compare. By far and large, these work on the same principle as TEL-Tetra Ethyl Lead which is the principle octane-boosting component of AvGas. For automotive OTC use, a slightly less carcinogenic MMT compound is used (methylcyclopentadienyl manganese tricarbonyl); it has pretty much the same structure as TEL, but with manganese substituted for lead. These compounds have a non-linear octane-boosting curve. The initial amounts give the most boost and adding more gives decreasing benefits. Typically you get 3-4 'points' increase with these types of additives; going from 91-octane to 91.4 octane max. I've uploaded a comparison article of these types of additives: 951 RacerX: Octane Booster Comparison
As you can imagine from the metallic content, these boosters create nasty deposits in your engine. That's why they typically include a solvent such as mineral spirits to try and dissolve the deposits. Then a lubricant such as ATF or Marvel Mystery Oil is typically added to the cocktail to help your rings slide over the deposits easier and minimize the damage. If you dyno-test a car using organo-metallics (with straight-through exhaust), you can actually collect metallic pellets coming out your tailpipe. Not a good thing to be putting into your combustion chambers no less...
2. OXYGENATES
[font=verdana][b]The next group of octane-boosting compounds are oxygenates: ethers & alcohols which also serves an emissions purpose by bundling their own oxygen along with the fuel. The best compound here is ethanol (CH3CH2OH) with a 115-octane (R+M)/2 ra
What's Octane???
Background
There's always a lot of confusion regarding octane, octane-boosters and how they work. Typical misconceptions are evident in blank-statements like:"Higher octane fuels burn slower, thus their higher octane number"
"Higher octane fuels burn hotter, therefore more power is generated"
Higher octane fuels explodes with more force, thus their higher power"
Both of which are untrue and are coincidental in effect, rather than causal. In actual practice, an engine has to be tuned specifically for high-octane fuels to generate extra power. If you have an engine fully-tuned and optimized for 91-octane pump gas, adding 100-octane race-gas into it will yield little if any increase. However, if you were to take that engine and increase the compression, advance the knock and/or increase the boost, then you can take advantage of the higher-octane fuel. But this precludes going back to the previous lower-octane fuels.
Three Kinds of Octane Boosters - 1. ORGANO-METALLICS
There are three primary octane-boosting additives mixed in with gasoline: organo-metallics, ethers/alcohols and aromatics. Each one has distinct chemical properties and results (along with side-effects) on octane-boosting. Some people get these families of compounds and their effects mixed up.First, let's look at organo-metallics which is used in the little bottles of over-the-counter octane boosters, what makes them work and how they compare. By far and large, these work on the same principle as TEL-Tetra Ethyl Lead which is the principle octane-boosting component of AvGas. For automotive OTC use, a slightly less carcinogenic MMT compound is used (methylcyclopentadienyl manganese tricarbonyl); it has pretty much the same structure as TEL, but with manganese substituted for lead. These compounds have a non-linear octane-boosting curve. The initial amounts give the most boost and adding more gives decreasing benefits. Typically you get 3-4 'points' increase with these types of additives; going from 91-octane to 91.4 octane max. I've uploaded a comparison article of these types of additives: 951 RacerX: Octane Booster Comparison
As you can imagine from the metallic content, these boosters create nasty deposits in your engine. That's why they typically include a solvent such as mineral spirits to try and dissolve the deposits. Then a lubricant such as ATF or Marvel Mystery Oil is typically added to the cocktail to help your rings slide over the deposits easier and minimize the damage. If you dyno-test a car using organo-metallics (with straight-through exhaust), you can actually collect metallic pellets coming out your tailpipe. Not a good thing to be putting into your combustion chambers no less...2. OXYGENATES
[font=verdana][b]The next group of octane-boosting compounds are oxygenates: ethers & alcohols which also serves an emissions purpose by bundling their own oxygen along with the fuel. The best compound here is ethanol (CH3CH2OH) with a 115-octane (R+M)/2 ra
#36
07-13-2007, 12:43 PM
RE: * What type of Gas are you feeding your Monte ?
well, i use 87, well because as you'll see, the prices around here are getting a little too expensive.
87 - 3.299 a gallon
89 - 3.399 a gallon
91 - 3.499 a gallon
(prices went down 10 cents from last week.... )
87 - 3.299 a gallon
89 - 3.399 a gallon
91 - 3.499 a gallon
(prices went down 10 cents from last week.... )
#37
07-14-2007, 07:35 AM
RE: * What type of Gas are you feeding your Monte ?
ORIGINAL: wiz kidd
what octane boost do you use???
because most octane booster's actually dont do anything really, the only one that actually boosts the octane more than 1 level of gas is lucas i think it boosts it around 6 or 7
i am not sure what the name of the stuff is at the time i cant find a bottle and i did not fuel up this year yet but it's stuff that i get at the local speed shop
and the only reason that i put it in is i dont want a ping in the motor am runnin 10.8:1 so to be on the safe side i do
the other ones that say 3 or 4 they mean .3 or .4
what octane boost do you use???
because most octane booster's actually dont do anything really, the only one that actually boosts the octane more than 1 level of gas is lucas i think it boosts it around 6 or 7
i am not sure what the name of the stuff is at the time i cant find a bottle and i did not fuel up this year yet but it's stuff that i get at the local speed shop
and the only reason that i put it in is i dont want a ping in the motor am runnin 10.8:1 so to be on the safe side i do
the other ones that say 3 or 4 they mean .3 or .4
#38
07-16-2007, 08:03 PM
RE: * What type of Gas are you feeding your Monte ?
Well here in Ottawa the price is nuts for gas! Premium is way to expensive. $1.039 per litre for 87-octane!!!! that works out to be about $4.156 per gallon :S Can't afford premium...heck can barely afford regular [:'(]lol
#39
08-15-2007, 06:19 AM
RE: * What type of Gas are you feeding your Monte ?
Thank the Gas God's for bringing the price of gas down 
Purchased gas this morning for $2.59.9 : )
Now, I wish my electric, insurance, etc would deceased : )