Regular (87 Octane) Gas in WRX?
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From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Originally posted by ilivas
The manual reccomends 91 octane I believe. An off the shelf octane booster will give you like .01 of an octane point so it's pointless.
The manual reccomends 91 octane I believe. An off the shelf octane booster will give you like .01 of an octane point so it's pointless.
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From: Oakland, CA
Car Info: 2009 wrx & 2000 4runner
Originally posted by BAN SUVS
Guys, if you can't afford the extra $3-4 per tank of gas, you need a cheaper car.
If you absolutely positively cannot get any 91 to out in your car you can run at 89 or even 87 for s hort time. You have to stay out of boost and out of full throttle. This applies even to Cobb's 87 octane map. DO NOT buy an AccessPort for the purposes of running 87 octane. For one thing, you're spending $500 to save $3 a tank... duh. For another, the car makes no boost on that map and timing is pulled so far you'd get walked by a Neon... a 5 year old ex-rental Neon.
Trust me on this- if you want to save gas money, drive less. Consolidate trips, drive slower, no "fun runs" on the backroads, and find a way to stay out of the car more often.
Guys, if you can't afford the extra $3-4 per tank of gas, you need a cheaper car.
If you absolutely positively cannot get any 91 to out in your car you can run at 89 or even 87 for s hort time. You have to stay out of boost and out of full throttle. This applies even to Cobb's 87 octane map. DO NOT buy an AccessPort for the purposes of running 87 octane. For one thing, you're spending $500 to save $3 a tank... duh. For another, the car makes no boost on that map and timing is pulled so far you'd get walked by a Neon... a 5 year old ex-rental Neon.
Trust me on this- if you want to save gas money, drive less. Consolidate trips, drive slower, no "fun runs" on the backroads, and find a way to stay out of the car more often.
yeah exactly what kevin said. if you can't afford the extra couple bucks, sell the car and buy a civic.
Originally posted by BAN SUVS
No, it recommends 93, but 91 octane is okay.
No, it recommends 93, but 91 octane is okay.
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Joined: Jun 2003
Posts: 69
From: Cleveland, OH
Car Info: 02wrx wrb COBB stage II, 93 Nissan Z, 98 Honda Prelude SH, blah, blah, blah who cares
Originally posted by BAN SUVS
Guys, if you can't afford the extra $3-4 per tank of gas, you need a cheaper car.
If you absolutely positively cannot get any 91 to out in your car you can run at 89 or even 87 for s hort time. You have to stay out of boost and out of full throttle. This applies even to Cobb's 87 octane map. DO NOT buy an AccessPort for the purposes of running 87 octane. For one thing, you're spending $500 to save $3 a tank... duh. For another, the car makes no boost on that map and timing is pulled so far you'd get walked by a Neon... a 5 year old ex-rental Neon.
Trust me on this- if you want to save gas money, drive less. Consolidate trips, drive slower, no "fun runs" on the backroads, and find a way to stay out of the car more often.
Guys, if you can't afford the extra $3-4 per tank of gas, you need a cheaper car.
If you absolutely positively cannot get any 91 to out in your car you can run at 89 or even 87 for s hort time. You have to stay out of boost and out of full throttle. This applies even to Cobb's 87 octane map. DO NOT buy an AccessPort for the purposes of running 87 octane. For one thing, you're spending $500 to save $3 a tank... duh. For another, the car makes no boost on that map and timing is pulled so far you'd get walked by a Neon... a 5 year old ex-rental Neon.
Trust me on this- if you want to save gas money, drive less. Consolidate trips, drive slower, no "fun runs" on the backroads, and find a way to stay out of the car more often.
If you want to use 87 buy a used neon.
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Joined: Jun 2003
Posts: 69
From: Cleveland, OH
Car Info: 02wrx wrb COBB stage II, 93 Nissan Z, 98 Honda Prelude SH, blah, blah, blah who cares
I've got an 88 Honda Civic dx. I commute to work in it and I usually get around 38mpg, & I use 87. Plus I don't care who parks next to me or taps my bumper or, or, or etc. Then on weekends I drive my Sube 
p.s.
I think I paid $1,100 for it.

p.s.
I think I paid $1,100 for it.
Originally posted by 2bluewagons
Where can you get 93 around here (NorCal)?
Where can you get 93 around here (NorCal)?
"premium unleaded gasoline with an octane rating of 91 AKI or higher. If premium unleaded gasoline is not available, regular unleaded gasoline with octane rating of 87 AKI or higher may be temporarily used."
- Kean
there's a few places in the bay that sell 100 octane gas
https://www.i-club.com/forums/showth...ighlight=sunol
https://www.i-club.com/forums/showth...ighlight=sunol
87 octane is definetly bad and you really shouldn't mix octanes if you can avoid it. Octane boosters are bogus, just do the math. Into a 15gallon gas tank you pour 1q of liquid and its going to boost your octane level? Only if its rocket fuel.
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Joined: Jun 2003
Posts: 69
From: Cleveland, OH
Car Info: 02wrx wrb COBB stage II, 93 Nissan Z, 98 Honda Prelude SH, blah, blah, blah who cares
Originally posted by ftnssn
87 octane is definetly bad and you really shouldn't mix octanes if you can avoid it. Octane boosters are bogus, just do the math. Into a 15gallon gas tank you pour 1q of liquid and its going to boost your octane level? Only if its rocket fuel.
87 octane is definetly bad and you really shouldn't mix octanes if you can avoid it. Octane boosters are bogus, just do the math. Into a 15gallon gas tank you pour 1q of liquid and its going to boost your octane level? Only if its rocket fuel.
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From: Honolulu, HI
Car Info: 1991 Toyota MR-2 Turbo
Originally posted by ilivas
The manual reccomends 91 octane I believe. An off the shelf octane booster will give you like .01 of an octane point so it's pointless.
The manual reccomends 91 octane I believe. An off the shelf octane booster will give you like .01 of an octane point so it's pointless.
In any case octane booster isn't worth it. Many people have the misconception that since it claims to raise your octane 1-2 points that it can turn 91 octane into 92 or 93. What it does is make it 91.1 -91.2.


