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Octane question...

‘19 GeeTee

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Just picked up a '19 GT. To offset the shitty 91 octane here in CA, I bought some Boostane to raise the octane a couple points. Will the computer automatically adjust, or does the fuel map have to be reset?

Thanks.
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69mach1-395

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Do the 19s require more than 91 per the owner's manual now?
 

69mach1-395

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IIRC it's only at very high rpms that it makes a difference, so on the street you will not lose anything.
 

Zrussian13

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I tried a can of boostane with our crappy 91 in az. I made 6 pulls on that tank of gas and 4 out of 6 felt strong but on 2 of the pulls the car felt like a dog and backed timing way off. Must have started knocking. My guess is it didn't mix up well enough in the tank. Made the switch to e85 after that and never looked back...
 

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boos550t

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If youre gonna track the car I understand

but 91 is fine for daily driving
 

Stymee

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The PCM will work with fuel up to 97 octane, with out a tune.

But I would make sure when u add booster, wait till u get down to 2-3 gallons, dump it in and fill up.

VP has a new unleaded additive to add to gas which is safe for Cats and 02 sensors and boosts octane 7 points
 

HoosierDaddy

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armykyle1 [HACKED ACCOUNT

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The car has tons of adjustment from the factory. It will add in timing for sure. 18+ computers are pretty bsdass. Without a tune, one car per tank should yield decent gains. Past that, you'll need a tune to utilize the extra octane. With two cans per tank I got 30-31° of timing at wot with my PBD tune.
 

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‘19 GeeTee

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The car has tons of adjustment from the factory. It will add in timing for sure. 18+ computers are pretty bsdass. Without a tune, one car per tank should yield decent gains. Past that, you'll need a tune to utilize the extra octane. With two cans per tank I got 30-31° of timing at wot with my PBD tune.
According to Boostane, 3.5 ounces of Boostane per full tank of 91 octane will yield 93 octane. Who knows?!
 

kent0464

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You’d be better off with E-85 or water/meth injection.
 

kent0464

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Gotta ask, why doesn’t anyone here seem to use Torco? It’s probably the best octane booster, been around for years and is used by nearly every top 1/4 mile guy that doesn’t run race gas or E85.
 

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boosts octane 7 points
Don't listen to additive companies that claim this. It's really an unrealistic claim. Expect 2-4 (R+M/2) octane number increase for the better additives.
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