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[smufguy]

what is the purpose of it though? when u dont get anything out of it why spend money into it?

[rallyeNate]

right, why buy a better, cleaner feul when you can buy the cheap gas

[87AccordsterLx]

lol... I mean why would anyone want clean injectors and a healthier engine anyway????

[smufguy]

so according to the specs on our cars from the factory, they did not know that 86 octane would actually be bad for our injectors and hurt our engine? dont get smartass with me, i am just asking things i dont know and just wanna know why ppl do it.

[rallyeNate]

first off i never said 86OCT was bad, why cant you people read!
secondly 93 is just better for your car.


my doctor never said fast food was bad, but why am i so FAT.

[Sean]

there are some common fuel myths propogating here.

one there are about 4 rade of street fuels hee in america.

86 87 89 93

now depending on where you live these grades may be ever so slightly different dependning on how yr sepcific state determines octane.

2/r+m

i could go in into how the arrive at these #'s but i wont. just tht some states require different octane rating standards.hence MD 93 is NJ 91.

as for octance requirements every engine is a bit different. the design of the piston top,combustion chamber,rod length,and the placement of the sprk pug as well as ignition timing can all have effects. also carbon buildup can increase the need for octance.by reducing the volume of the combustion chamber and therby compresion.

there is no benifit all at in any way to running higher octane fuel. than wht the engine needs. the 89lxi sei need to use 89 due to the 9.3:1 compresion. all other accords are fine with 87.

to dispell another myth high octane fuels have never been proven to be any cleaner in terms of sediment than the lower octane brethern. most of this is due to te fact that the tanks they store fuel in are notrously dirty. higher octane fuel may acctually increase carbon deposits and buildup due to the fact the higher octane fule use less benzine which is a solvent. benzine actually does a great job of keep yr fuel system clean.

if you want a great running car with clean injectors and carberator. keep the fuel filter chaged every 3-4 months. i know yr thinking wow thats alot of filters but its not realy enough. todays gas stations are getting older and alot of them have largely dirty tanks. so in short fresh filters not exspensive designer fuel will make yr car faster.

also high octance fuel due not burn any longer than low octance fuels.they have less btu's to boot. your nto getting yr gollans worth with high octane pump gas.

as for racing fuel they genreally have a higher btu content that why yr car goes faster.

[toastyghost]

One question... what the fuck is "octane boost"? Fake race gas additive or something?

[Mike's89AccordLX]

It really doesn't increase the octane level of the gas. I believe it's proven to not work. That's what this mechanic told me.

[87AccordsterLx]

dude... chill.... I didnt realize that you were asking why... I apologize for turning it into a joke when you were really just asking a question...I didnt realize that you were... so... the reason is becasue it is ok for 3geez to use a lower octane fuel... our engines will run it. The thing is that it isnt as clean as a higher octane fuel is for our cars.... read the post that I posted earlier... its not necessary to run it... its just better to... the higher octane rating that you use the less additives mainly heptane is used to to make more gas...

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, methane, propane and butane are all hydrocarbons. Methane has 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. For a 3g the compression is such that it is like I said before... "not necessary"

Sorry for that long post but is it a little bit more clear on why its better yet not needed??? Just trying to help.... Peace

[87AccordsterLx]

funstick.... I read your post and did a little bit more research... You are right when it comes to the higher octane being cleaner for your engine... thats not true in all aplications... my statement on compression and heptane being unstable is still accurate as to why using higher octane does help with decreasing anti-knock and engine performance as far and fuel effeciency... thanks.. Peace...

[Sean]

wel octane s the amount of knock resistantce a fuel has. its deternimend in sevral manrs. do some checking around on the r/m 2 equation. thats how octne is figured. ill let you do the reading.

[rallyeNate]

higher octane feul is more REFINED! you know CLEANER! NOT FULL OF SHIT TO SHIT UP YOUR CAR. THATS my point, NOT PERFORMANCE! you will not gain any performance out of higher octane gas unless you need it, but with almost 9.5 compression, its a good margin of saftey. it doesnt take to much spark knock to destroy a piston.

SPARK KNOCK BEGETS SPARK KNOCK

[smufguy]

i am sorry about my outburst, i am just sick of ppl making it a joke when someone is trying to learn something (unless ppl say that they are just kidding or joking as i do when i am an asshole). so anywayz, my question is. our cars did not run on higher octane than 86 octane from the day it hit the road from the dealer ship. so everyone knows for a fact its like shit inside the car, cause i have taken a look at the valves, and they arenot a pretty sight. so anyways, although clearer fuel would not deposit any more NEW residue on ur fuel system and what was there is just there still right? but also to know that the amount of residue on our cars were accumilated over 13 years so using a higher octane is not gonna make a HUGE difference, though it would minimize the deposition.

i got confused about thie octane crap when ppl started to come out and give an impression that higher octane in their car performance. i am not saying ppl said that, but the way they said that made me think that they were tlaking about a gain in performance. i am a dumbass. i wish there was something that would just eat away the black shit in our internals and push it out thru the exhaust.

with 9.1 on carbs and 9.3 on an efi, i wonder whats gonna be really messed up on low octanes. its just a thought.

[Accy]

Hey thanks a bunch to 87AccordsterLx for all the info (really helpful) Just want to mention that although some ppl are saying that using a lower octane for 3geez i.e. 87, 89 is ok for the car, what's read in the Honda Accord LX Manual is that the recommended octane fuel level to use is 91. now us Canadians have a gas company called Sunoco (Americans may have it too, but not sure) and their highest octane is a whopping 94. See Canadians arent all bad, guys! lol so what I suggest is that you read your manual so that your not giving your beauty of a car crappy gas

Thanks again for all the help

[87AccordsterLx]

no problem man....