View Full Version : 91 octane vrs. 93?


KB535i
04-12-2005, 04:05 PM
:help Hello fellas' I just found a place in town that has 93 octane. I didnt know my town even had it. Anyway Ive been running the 91 since my JC chip install and was wondering if the 93 is better OR if theres a chance it could harm the engine. Any thoughts or experiance? :help

dagoo98
04-12-2005, 04:25 PM
I definitely know it won't harm the engine, out here in NYC they only sell 93. There are only a few gas stations that sell 91. The usual lineup is 87, 89, 93. It should perform better especially since you have the performance chip.

Tahoe M3
04-12-2005, 04:38 PM
93 will NOT hurt anything and can only help your performance, especially when the weather gets hot. Oh for 93 in CA but we aren't so lucky.

KB535i
04-12-2005, 04:57 PM
:buttrock Sweeeet. 93 it is from now on :alright thanks guys

Dark Helmet
04-12-2005, 05:02 PM
if its the same money, go with 93, I run 92 Amoco when I can, that's the highest we get up here. if its a substantial price hit, I'm not sure you will realize any gains unless the 91 you are using is crap.

jimmyz2
04-12-2005, 05:35 PM
I wish I had your problem here in the People's Republika of Kalifornia. :(

Mobius20
04-12-2005, 06:21 PM
If your engine runs fine on 91, you won't notice a damn bit of difference with 93. M30s have no method of taking advantage of higher-than-necessary octane fuel.

KB535i
04-12-2005, 06:57 PM
If your engine runs fine on 91, you won't notice a damn bit of difference with 93. M30s have no method of taking advantage of higher-than-necessary octane fuel.

:bawl... :( .....bummer

sirtiger
04-12-2005, 07:58 PM
I definitely know it won't harm the engine, out here in NYC they only sell 93. There are only a few gas stations that sell 91.

there is the Sunoco 94 in NY :D

jock168
05-03-2005, 02:44 PM
Some 76 Stations have 100 Octane. I don't konw where you are but the 76 Station on Almaden & Foxworthy in South San Jose has it.

dagoo98
05-03-2005, 03:40 PM
there is the Sunoco 94 in NY :D


Not anymore in NYC, not since last summer. It's possible that they still have it out on LI but I'm not out there much. I used to use it all the time in NYC before they stopped selling it. The lineup in Sunoco in NYC now is 87, 89, 91, 93.

sirtiger
05-03-2005, 04:21 PM
^^hmmm weird... I still see it around.. but u r right.. not as much...

wonder why? not profitable?

Mblaster
05-03-2005, 07:02 PM
Kali just freaking blows.
Though you can get 100 and make a cocktail. :devillook

abakos
05-03-2005, 07:20 PM
M30s don't run very high compression at all. Even with the chip you're probably fine on 91 (or even 89?). I was always of the impression that as long as you don't have a pre-ignition problem you're in good shape.

I'm not too well read on the topic, but that's my understanding. Putting in higher octane than necessary is generally a waste of $$.

dagoo98
05-03-2005, 07:51 PM
^^hmmm weird... I still see it around.. but u r right.. not as much...

wonder why? not profitable?

Where in NYC do you still see it? I used to use it all the time and would like to still get 94 octane if it isn't too much out of the way. Thanks.