[Austin]

I can live with that, though I thought full potential was achieved on 93 octane. If 91 octane ends up bringing down the power rating by 15% or more, the Subaru WRX starts to look more appealing considering it makes its full potential output out of only 91 octane.......we shall see.

You would fit in REALLY well if you owned a Subaru in Colorado lol.

 

[rambo3500]

You would fit in REALLY well if you owned a Subaru in Colorado lol.

Yeah I've heard/seen lol. Glad there are good alternatives out there!

 

[slow03mach1]

srs = serious - Don't you love how millennials save letters for "clearer understanding" :stupid:

Did anyone go back and read the response Ford provided on this forum ? :lazy:
http://www.focusrs.org/forum/9-focu...9-focus-rs-discussions/1045-official-focus-rs-question-thread-32.html#post25925
http://www.focusrs.org/forum/9-focu...9-focus-rs-discussions/1045-official-focus-rs-question-thread-32.html#post25929

So in summary ,
(1) If you want to be a skinflint an save a couple of hundred dollars a year, put in 87 octane. How is Ford going to really know ??
(2) If you put in 91 octane, which is what the engine is tuned and designed for you will get factory performance.
(3) If you put in 93 octane you possibly will get higher performance, only because the ETC is pretty smart and automatically adjusts for higher and lower grades of octance.
(4) If you can't get 91 octane , use octane boost.
(5) If you tune your car or mod it you may get better performance with higher octane and you may impact long term reliability, especially if you may change the ECT's ability to handle lower grade fuel and you may encounter "Check Engine" lights.

LTP :smug:

YMMV,

MidCow3

Maybe he's talking about the supplemental restraint system?

What if we just fill our tanks with boxes of octane booster from Costco? So we'd make like 600 horsepower minimum right? Here I come ZO6's and GTR's!

 

[Homage]

srs = serious - Don't you love how millennials save letters for "clearer understanding" :stupid:

Did anyone go back and read the response Ford provided on this forum ? :lazy:
http://www.focusrs.org/forum/9-focu...9-focus-rs-discussions/1045-official-focus-rs-question-thread-32.html#post25925
http://www.focusrs.org/forum/9-focu...9-focus-rs-discussions/1045-official-focus-rs-question-thread-32.html#post25929

So in summary ,
(1) If you want to be a skinflint an save a couple of hundred dollars a year, put in 87 octane. How is Ford going to really know ??
(2) If you put in 91 octane, which is what the engine is tuned and designed for you will get factory performance.
(3) If you put in 93 octane you possibly will get higher performance, only because the ETC is pretty smart and automatically adjusts for higher and lower grades of octance.
(4) If you can't get 91 octane , use octane boost.
(5) If you tune your car or mod it you may get better performance with higher octane and you may impact long term reliability, especially if you may change the ECT's ability to handle lower grade fuel and you may encounter "Check Engine" lights.

LTP :smug:

YMMV,

MidCow3

 

[danielf99645]

I thought in the RS manual it said you can not use octane booster ?


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[onestep]

If you are really concerned about power output by 10 or 15 hp then do yourself a huge favor and just remove the air con belt. Are you all out there Racing for money on every tank of fuel?

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[Tony28]

If $5.40 per tank is killing your wallet, then why are you buying a performance car in the first place?

 

[Gesundlich]

Boostane or Torco are the ONLY widely available (pre mixed) octane boosters that work. And they work WELL. None of the crap you buy at auto parts stores are worth a damn.

Both Boostane and Torco are predominantly MMT containing additives (the exact same additive Sunnoco puts in their race gas). They are perfectly safe for today's cars (injectors and cat converters). The only drawback is an orangeish tint to the inside of your turbine housing and downpipe (from the manganese, a component of MMT). Highly recommend buying it by the 5 gal drum. 16oz of Boostane will raise 16 gallons of 91 octane to around 93. If you buy the 5 gal drum, it works out to an extra $10/per tank. HOWEVER, separately, the Boostane 32oz cans are at least $36 each (meaning $18/tank). The 5 gal drums aren't cheap, but worth it in the long run if you drive a lot or have multiple cars. MUCH cheaper than race gas. As an

FWIW, i've used Torco for over a decade in all of my turbo sports cars (Porsche turbo, GTR, multiple STi's, forced induction NSX). Recently started using Boostane instead, as I think it's a little more potent.

 

[Greatscott]

I'm going to drive to Petro-Canada and buy 94 octane from the pump labeled 94 octane

 

[danielf99645]

Boostane or Torco are the ONLY widely available (pre mixed) octane boosters that work. And they work WELL. None of the crap you buy at auto parts stores are worth a damn.

Both Boostane and Torco are predominantly MMT containing additives (the exact same additive Sunnoco puts in their race gas). They are perfectly safe for today's cars (injectors and cat converters). The only drawback is an orangeish tint to the inside of your turbine housing and downpipe (from the manganese, a component of MMT). Highly recommend buying it by the 5 gal drum. 16oz of Boostane will raise 16 gallons of 91 octane to around 93. If you buy the 5 gal drum, it works out to an extra $10/per tank. HOWEVER, separately, the Boostane 32oz cans are at least $36 each (meaning $18/tank). The 5 gal drums aren't cheap, but worth it in the long run if you drive a lot or have multiple cars. MUCH cheaper than race gas. As an

FWIW, i've used Torco for over a decade in all of my turbo sports cars (Porsche turbo, GTR, multiple STi's, forced induction NSX). Recently started using Boostane instead, as I think it's a little more potent.

What type of store or company can you buy 5 gallon jugs, I'm in Alaska so not sure if it's available in large amounts?

 

[danielf99645]

I ordered a 5 gallon jug directly from boostane
Ups shipping to Alaska added $75 to the total making it $425


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[RacerX]

Owners Manual states not to use octane boosters that contain MMT:

Do not use:
Diesel fuel.
Fuels containing kerosene or paraffin.
Fuel containing more than 15% ethanol or E85 fuel.
Fuels containing methanol.
Fuels containing metallic-based additives, including manganese-based compounds.
Fuels containing the octane booster additive, methylcyclopentadienyl manganese tricarbonyl (MMT).
Leaded fuel (using leaded fuel is prohibited by law).
The use of fuels with metallic compounds such as methylcyclopentadienyl manganese tricarbonyl (commonly known as MMT), which is a manganese-based fuel additive, will impair engine performance and affect the emission control system.

 

[FoRS214]

Owners Manual states not to use octane boosters that contain MMT:

Do not use:
Diesel fuel.
Fuels containing kerosene or paraffin.
Fuel containing more than 15% ethanol or E85 fuel.
Fuels containing methanol.
Fuels containing metallic-based additives, including manganese-based compounds.
Fuels containing the octane booster additive, methylcyclopentadienyl manganese tricarbonyl (MMT).
Leaded fuel (using leaded fuel is prohibited by law).
The use of fuels with metallic compounds such as methylcyclopentadienyl manganese tricarbonyl (commonly known as MMT), which is a manganese-based fuel additive, will impair engine performance and affect the emission control system.

Should be a disclaimer with these Engineers posting things. Hope he didn't waste his hard earned money.

 

[danielf99645]

Well worse case scenario if I can't use it in the RS I will use it in my Challenger SRT 8.


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