mmm...good old 100 octane fuel. i love this country

 

Higher octane in an older car is desireable when the miles begin to rack up. New cars with all the on board electronics really only need what the manufacturer requires. Going to max octane on a brand new vehicle is basically a waste of money. Older higher mileage cars benefit from higher octane with respect to performance.

 

You should try 94. !!!

 

wow, gas is high in Brooklyn. I topped off last night with BP 93, and paid 1.87/gal for it. Gotta love that!

Every now and again (like a few times a year), I will run octane booster in the car, just to burn off any carbon build up, and yeah, that stuff REALLY makes a difference. But yes, always use the good stuff. It may be mostly psychological, but hell it's only a few cents a gallon, that's a small price to pay for peace of mind IMO.

BTW, like the new sig Delmarco!

 

Higher octane won't increase your performance only waste money, unless you have a turbo then it makes a difference.

 

Originally posted by jllphan@Jan 5 2005, 08:10 AM
Every now and again (like a few times a year), I will run octane booster in the car, just to burn off any carbon build up, and yeah, that stuff REALLY makes a difference. But yes, always use the good stuff. It may be mostly psychological, but hell it's only a few cents a gallon, that's a small price to pay for peace of mind IMO.

[snapback]264721[/snapback]​

Ah, where do you get octane booster? I recall my friend once getting something at a paint store that had a double use as an octane booster... but I'm not sure I'd trust that.

 

If you want a huge octane boost use a gallon of toluene or xylene per full tank. I am not sure, but i think toluene is 114 grade and xylene is 117 or something like that. Xylene is way more canerous though so wear some gloves. You can get either at a paint store like sherman williams or at home depot. Used with 91 or 93 this will bump up your point grade a lot. This is what most track and auto-x drivers do. Don't fill up your entire tank with the stuff because you won't be able to ignite and don't do it too often because it eats away at the rubber. Great injection cleaner though

 

Originally posted by Live_the_Curves@Jan 5 2005, 10:06 AM
Higher octane won't increase your performance only waste money, unless you have a turbo then it makes a difference.

[snapback]264746[/snapback]​

I believe you are correct.
Higher octane does not mean it expands more, it means it resists premature combustion due to the heat and compression. (knocking)

I've noticed when I go to different stations and different chains where they buy the fuel from different distributers, sometimes I will get a great tank of gas that seems to give me 10-20 more HP than before. It's more noticeable between fillups when your tank is almost bone dry. Sometimes I get a crappy tank of gas, and don't go to that station for the next few weeks, by then they probably fill up their tanks again.

I think you guys have fallen victim of advertising. Permium gas isn't "premium"... it's just higher in octane.

 

91 around here is like 2,25 or higher! damn gas prices!! as for cars with higher mileage you car wont run as rough as it would if you put higher gas in it. they need it!

David

 

Originally posted by jllphan@Jan 5 2005, 07:10 AM
wow, gas is high in Brooklyn. I topped off last night with BP 93, and paid 1.87/gal for it. Gotta love that!

Every now and again (like a few times a year), I will run octane booster in the car, just to burn off any carbon build up, and yeah, that stuff REALLY makes a difference. But yes, always use the good stuff. It may be mostly psychological, but hell it's only a few cents a gallon, that's a small price to pay for peace of mind IMO.

BTW, like the new sig Delmarco!

[snapback]264721[/snapback]​

I've decided to set you on fire for having better gasoline than me for less money than I pay. I pay 2.09 for 91...

 

they don't even sell 91 octane at my local gas stations so i've ALWAYS been enjoying 93

 

Originally posted by Tochenzo@Jan 5 2005, 03:28 PM
they don't even sell 91 octane at my local gas stations so i've ALWAYS been enjoying 93

[snapback]264941[/snapback]​

Yeah 91 is a rare breed of octane in NYC. That Sanex on Atlantic Avenue is the only place I can remember seeing with 91 octane in the NY area. I've seen more places in Delware and Pennsylvania with 91 octane but no 93.

I've alway though once you go above 89 or 90 it would be the same but now I'm sticking with 93 cause the performance differences and fuel efficiency are so much better! :wrench

 

in CA 91 is the highest octane available

 

ive never seen 93, the only options i get are 87 89 91 :confused

of course i get 91

 

Im using 99 octane over here in the Uk! The only downer is that we have to pay stupid prices for our fuel issed2

 

I've never noticed the difference. I usually get 93. But when I can, I get 91, since that is what BMW specifies (and it costs slightly less).

 

http://www.elektro.com/~audi/toluene/

 

We get 93 octane, but 100 costs the same.we pay $0.70 /L

 

Originally posted by Silencer@Jan 6 2005, 02:04 AM
We get 93 octane, but 100 costs the same.we pay $0.70 /L

[snapback]265390[/snapback]​

I've seen much higher octane ratings from you guys out of the US. There are different methods of calculating octane. In the US, we use an average rating - known as either AKI or R+M/2.

Just to make sure we're comparing apples to apples - what octane rating method is used in your non-US countries?

 

here in oklahoma city, its $1.70 for 91 octane

 

Originally posted by abemcclellan@Jan 6 2005, 01:14 PM
here in oklahoma city, its $1.70 for 91 octane

[snapback]265580[/snapback]​

I hate you.....in my city it's almost $2.30