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Cadillac 2004 CTS-V
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173 Posts
Discussion Starter #1
With todays gas not getting any better I'm considering using octane boost. I've heard good things about the octane boost made by Amsoil. I know this has been discussed before (with many giving it a thumbs down) but it seems there must be SOME merit to this stuff.
Thanks
 

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2016 ATS Premium 6-spd MT
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13,987 Posts
Would be of help ONLY if you are currently encountering knock and your spark is being retarded by the PCM as a result.

I say, save your $.
 

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'05 CTS-V (sold)
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1,473 Posts
I read that the marketing is very misleading. If the bottle says it raises octane by 4 points, it actually means it is raising it by 0.4 octane. You'd have to dump 3 bottles of the stuff to get just over 1 octane point. Am I wrong??
 

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2004 CTSV
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1,133 Posts
Buy a couple tanks of top quality branded premium and see if you notice a difference. I don't know where you live but if on the east coast - try Sunoco Ultra. If southwest - Shell. Avoid the local mom and pop gas station until you're sure you can trust it. IMO
 

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Sedan de Ville, CTS
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4,764 Posts
With todays gas not getting any better I'm considering using octane boost. I've heard good things about the octane boost made by Amsoil. I know this has been discussed before (with many giving it a thumbs down) but it seems there must be SOME merit to this stuff.
Thanks
I like your attitude. As a reward, I am going to sell you 10 of those devices that save you gasoline. If you connect them all together, then you might never have to buy gasoline again.
 

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157 Posts
Best Octane booster around is Torco Accelerator. I use a 32 oz can in every tank in my Twin Turbo Corvette as well as my CTS-V.

Mixing in one 32 oz can of Torco gets me the same results as mixing in a five gallon jug of 100 octane. It allows me to run more timing and kills any KR. Torco has proven itself to me on the dyno, track and the street.

Someone sent a sample to Core labs in Carson, CA mixing 10 gallons of 91 octane with a 32 oz can of Torco the R+M/2 or ending octane was 96.5

The dyno numbers on my V were at 320 (mustang dyno) something rwhp with intake, exhaust, and tune

Then I put in the Torco, added extra timing and dyno numbers went to 340 (mustang dyno) something rwhp.

I left the Torco tune in and bought a case of Torco and a 5 gallon pail to refill the smaller cans so I always have one in the trunk for fillups.
 

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2004 CTSV
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1,133 Posts
Hey, boys and girls - try this

Do a google search on octane booster reviews then torco and guess what?

You find only forum posts but no credible reviews.

You'll see viper forum and srt forum and F150 forum and on and on


I have my doubts about this stuff. Adding toluene (or even cumene) provides incremental boost but nothing worth the money.

And of course, the oil companies love running extra distillation and reforming capacity to get higher octane when they could add a little snake oil for the same results.

PT was right - one born every minute
 

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05' CTS-V
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3,718 Posts
^^^ by buddy shaved off .2 in his lt1 maro' with some xylene in the tank :p but ya, have fun with the tarco, I'll just fill er up with 93 and be done with it......IMO if you can afford a TT vette, you can afford the higher priced gas that goes along with it.
 

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See you in the funny papers
04 CTS-V, 05 STS, 07 SRX- All sold :(
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26,239 Posts
The only way I'd ever swear by Octane booster is if I stood next to a can of it and proclaimed, "This stuff is shit".

As others have pointed out, it would take several bottles to raise the Octane by any noticeable amount, and that can be done cheaper and easier by purchasing race fuel.
 
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